56667277890 has 64 divisors (see below), whose sum is σ = 159066057600. Its totient is φ = 14315942592.

The previous prime is 56667277867. The next prime is 56667277897. The reversal of 56667277890 is 9877276665.

It is a super-2 number, since 2×56667277890² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56667277897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5517997 + ... + 5528256.

It is an arithmetic number, because the mean of its divisors is an integer number (2485407150).

Almost surely, 2^56667277890 is an apocalyptic number.

56667277890 is an abundant number, since it is smaller than the sum of its proper divisors (102398779710).

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

56667277890 is a wasteful number, since it uses less digits than its factorization.

56667277890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11046288 (or 11046282 counting only the distinct ones).

The product of its (nonzero) digits is 53343360, while the sum is 63.

The spelling of 56667277890 in words is "fifty-six billion, six hundred sixty-seven million, two hundred seventy-seven thousand, eight hundred ninety".