56715172134261 has 8 divisors (see below), whose sum is σ = 80068478307264. Its totient is φ = 35585990358720.

The previous prime is 56715172134259. The next prime is 56715172134287. The reversal of 56715172134261 is 16243127151765.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56715172134261 - 2¹ = 56715172134259 is a prime.

It is a super-2 number, since 2×56715172134261² (a number of 28 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 1112062198711 = 56715172134261 / (5 + 6 + 7 + 1 + 5 + 1 + 7 + 2 + 1 + 3 + 4 + 2 + 6 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56715172130261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 556031099305 + ... + 556031099406.

It is an arithmetic number, because the mean of its divisors is an integer number (10008559788408).

Almost surely, 2^{56715172134261} is an apocalyptic number.

56715172134261 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

56715172134261 is a deficient number, since it is larger than the sum of its proper divisors (23353306173003).

56715172134261 is a wasteful number, since it uses less digits than its factorization.

56715172134261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1112062198731.

The product of its digits is 2116800, while the sum is 51.

The spelling of 56715172134261 in words is "fifty-six trillion, seven hundred fifteen billion, one hundred seventy-two million, one hundred thirty-four thousand, two hundred sixty-one".