56661101060610 has 64 divisors (see below), whose sum is σ = 143897684336640. Its totient is φ = 14249127668160.

The previous prime is 56661101060549. The next prime is 56661101060617. The reversal of 56661101060610 is 1606010116665.

It is not an unprimeable number, because it can be changed into a prime (56661101060617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 578243530 + ... + 578341509.

It is an arithmetic number, because the mean of its divisors is an integer number (2248401317760).

Almost surely, 2^{56661101060610} is an apocalyptic number.

56661101060610 is an abundant number, since it is smaller than the sum of its proper divisors (87236583276030).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56661101060610 is a wasteful number, since it uses less digits than its factorization.

56661101060610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156585143.

The product of its (nonzero) digits is 38880, while the sum is 39.

The spelling of 56661101060610 in words is "fifty-six trillion, six hundred sixty-one billion, one hundred one million, sixty thousand, six hundred ten".