56606647551 has 8 divisors (see below), whose sum is σ = 75478753584. Its totient is φ = 37736153280.

The previous prime is 56606647507. The next prime is 56606647561. The reversal of 56606647551 is 15574660665.

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

It is not a de Polignac number, because 56606647551 - 2¹¹ = 56606645503 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56606647494 and 56606647503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56606647561) 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, 318460 + ... + 463281.

It is an arithmetic number, because the mean of its divisors is an integer number (9434844198).

Almost surely, 2^56606647551 is an apocalyptic number.

56606647551 is a deficient number, since it is larger than the sum of its proper divisors (18872106033).

56606647551 is a wasteful number, since it uses less digits than its factorization.

56606647551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805881.

The product of its (nonzero) digits is 4536000, while the sum is 51.

The spelling of 56606647551 in words is "fifty-six billion, six hundred six million, six hundred forty-seven thousand, five hundred fifty-one".