56165547451 has 8 divisors (see below), whose sum is σ = 61388750864. Its totient is φ = 51071312160.

The previous prime is 56165547439. The next prime is 56165547499. The reversal of 56165547451 is 15474556165.

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

It is a cyclic number.

It is not a de Polignac number, because 56165547451 - 2²⁷ = 56031329723 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56165547395 and 56165547404.

It is not an unprimeable number, because it can be changed into a prime (56165547421) 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, 32241120 + ... + 32242861.

It is an arithmetic number, because the mean of its divisors is an integer number (7673593858).

Almost surely, 2^56165547451 is an apocalyptic number.

56165547451 is a deficient number, since it is larger than the sum of its proper divisors (5223203413).

56165547451 is a wasteful number, since it uses less digits than its factorization.

56165547451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64484061.

The product of its digits is 2520000, while the sum is 49.

The spelling of 56165547451 in words is "fifty-six billion, one hundred sixty-five million, five hundred forty-seven thousand, four hundred fifty-one".