56685633770 has 8 divisors (see below), whose sum is σ = 102034140804. Its totient is φ = 22674253504.

The previous prime is 56685633713. The next prime is 56685633773. The reversal of 56685633770 is 7733658665.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 56357335609 + 328298161 = 237397^2 + 18119^2 .

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

It is a super-2 number, since 2×56685633770² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56685633773) 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 3 ways as a sum of consecutive naturals, for example, 2834281679 + ... + 2834281698.

Almost surely, 2^56685633770 is an apocalyptic number.

56685633770 is a deficient number, since it is larger than the sum of its proper divisors (45348507034).

56685633770 is a wasteful number, since it uses less digits than its factorization.

56685633770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5668563384.

The product of its (nonzero) digits is 19051200, while the sum is 56.

The spelling of 56685633770 in words is "fifty-six billion, six hundred eighty-five million, six hundred thirty-three thousand, seven hundred seventy".