56660000099 has 8 divisors (see below), whose sum is σ = 58018229760. Its totient is φ = 55308132936.

The previous prime is 56660000087. The next prime is 56660000101. The reversal of 56660000099 is 99000006665.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56660000099 is a prime.

It is a super-2 number, since 2×56660000099² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56660000029) 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, 1572599 + ... + 1608224.

It is an arithmetic number, because the mean of its divisors is an integer number (7252278720).

Almost surely, 2^56660000099 is an apocalyptic number.

56660000099 is a deficient number, since it is larger than the sum of its proper divisors (1358229661).

56660000099 is a wasteful number, since it uses less digits than its factorization.

56660000099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3181249.

The product of its (nonzero) digits is 87480, while the sum is 41.

The spelling of 56660000099 in words is "fifty-six billion, six hundred sixty million, ninety-nine", and thus it is an aban number.