516540536657 has 16 divisors (see below), whose sum is σ = 524505212352. Its totient is φ = 508638863040.

The previous prime is 516540536653. The next prime is 516540536671. The reversal of 516540536657 is 756635045615.

It is a cyclic number.

It is not a de Polignac number, because 516540536657 - 2² = 516540536653 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 516540536599 and 516540536608.

It is not an unprimeable number, because it can be changed into a prime (516540536653) 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, 23660807 + ... + 23682627.

It is an arithmetic number, because the mean of its divisors is an integer number (32781575772).

Almost surely, 2^516540536657 is an apocalyptic number.

It is an amenable number.

516540536657 is a deficient number, since it is larger than the sum of its proper divisors (7964675695).

516540536657 is a wasteful number, since it uses less digits than its factorization.

516540536657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23248.

The product of its (nonzero) digits is 11340000, while the sum is 53.

The spelling of 516540536657 in words is "five hundred sixteen billion, five hundred forty million, five hundred thirty-six thousand, six hundred fifty-seven".