56780112170 has 16 divisors (see below), whose sum is σ = 102251977128. Its totient is φ = 22701428160.

The previous prime is 56780112161. The next prime is 56780112211. The reversal of 56780112170 is 7121108765.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 44745363961 + 12034748209 = 211531^2 + 109703^2 .

It is a super-2 number, since 2×56780112170² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1304609 + ... + 1347428.

Almost surely, 2^56780112170 is an apocalyptic number.

56780112170 is a deficient number, since it is larger than the sum of its proper divisors (45471864958).

56780112170 is a wasteful number, since it uses less digits than its factorization.

56780112170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2654185.

The product of its (nonzero) digits is 23520, while the sum is 38.

The spelling of 56780112170 in words is "fifty-six billion, seven hundred eighty million, one hundred twelve thousand, one hundred seventy".