56816130165671 has 16 divisors (see below), whose sum is σ = 62121435552000. Its totient is φ = 51730210967040.

The previous prime is 56816130165631. The next prime is 56816130165673. The reversal of 56816130165671 is 17656103161865.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56816130165671 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56816130165673) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18160316 + ... + 21057761.

It is an arithmetic number, because the mean of its divisors is an integer number (3882589722000).

Almost surely, 2^{56816130165671} is an apocalyptic number.

56816130165671 is a deficient number, since it is larger than the sum of its proper divisors (5305305386329).

56816130165671 is a wasteful number, since it uses less digits than its factorization.

56816130165671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39220874.

The product of its (nonzero) digits is 5443200, while the sum is 56.

The spelling of 56816130165671 in words is "fifty-six trillion, eight hundred sixteen billion, one hundred thirty million, one hundred sixty-five thousand, six hundred seventy-one".