56613332578 has 32 divisors (see below), whose sum is σ = 101471823360. Its totient is φ = 23384444160.

The previous prime is 56613332557. The next prime is 56613332593. The reversal of 56613332578 is 87523331665.

It is a super-2 number, since 2×56613332578² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2599026 + ... + 2620717.

It is an arithmetic number, because the mean of its divisors is an integer number (3170994480).

Almost surely, 2^56613332578 is an apocalyptic number.

56613332578 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

56613332578 is a deficient number, since it is larger than the sum of its proper divisors (44858490782).

56613332578 is a wasteful number, since it uses less digits than its factorization.

56613332578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5219802.

The product of its digits is 2721600, while the sum is 49.

The spelling of 56613332578 in words is "fifty-six billion, six hundred thirteen million, three hundred thirty-two thousand, five hundred seventy-eight".