56642243151 has 8 divisors (see below), whose sum is σ = 81332451760. Its totient is φ = 34856764992.

The previous prime is 56642243149. The next prime is 56642243153. The reversal of 56642243151 is 15134224665.

It is an interprime number because it is at equal distance from previous prime (56642243149) and next prime (56642243153).

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

It is not a de Polignac number, because 56642243151 - 2¹ = 56642243149 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 1452365209 = 56642243151 / (5 + 6 + 6 + 4 + 2 + 2 + 4 + 3 + 1 + 5 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56642243153) 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, 726182566 + ... + 726182643.

It is an arithmetic number, because the mean of its divisors is an integer number (10166556470).

Almost surely, 2^56642243151 is an apocalyptic number.

56642243151 is a deficient number, since it is larger than the sum of its proper divisors (24690208609).

56642243151 is a wasteful number, since it uses less digits than its factorization.

56642243151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1452365225.

The product of its digits is 172800, while the sum is 39.

The spelling of 56642243151 in words is "fifty-six billion, six hundred forty-two million, two hundred forty-three thousand, one hundred fifty-one".