56776266011157 has 128 divisors (see below), whose sum is σ = 100773111398400. Its totient is φ = 27541438041600.

The previous prime is 56776266011137. The next prime is 56776266011177. The reversal of 56776266011157 is 75111066267765.

It is an interprime number because it is at equal distance from previous prime (56776266011137) and next prime (56776266011177).

It is not a de Polignac number, because 56776266011157 - 2⁷ = 56776266011029 is a prime.

It is a super-3 number, since 3×56776266011157³ (a number of 42 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 56776266011157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56776266011137) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1388865444 + ... + 1388906322.

It is an arithmetic number, because the mean of its divisors is an integer number (787289932800).

Almost surely, 2^{56776266011157} is an apocalyptic number.

56776266011157 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

It is an amenable number.

56776266011157 is a deficient number, since it is larger than the sum of its proper divisors (43996845387243).

56776266011157 is a wasteful number, since it uses less digits than its factorization.

56776266011157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45447.

The product of its (nonzero) digits is 22226400, while the sum is 60.

The spelling of 56776266011157 in words is "fifty-six trillion, seven hundred seventy-six billion, two hundred sixty-six million, eleven thousand, one hundred fifty-seven".