55766899866755 has 64 divisors (see below), whose sum is σ = 88373518387200. Its totient is φ = 32706774067200.

The previous prime is 55766899866749. The next prime is 55766899866809.

It is a happy number.

55766899866755 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55766899866755 - 2²² = 55766895672451 is a prime.

It is a super-3 number, since 3×55766899866755³ (a number of 42 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16172021 + ... + 19314969.

It is an arithmetic number, because the mean of its divisors is an integer number (1380836224800).

Almost surely, 2^{55766899866755} is an apocalyptic number.

55766899866755 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55766899866755 is a deficient number, since it is larger than the sum of its proper divisors (32606618520445).

55766899866755 is a wasteful number, since it uses less digits than its factorization.

55766899866755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3145700.

The product of its digits is 205752960000, while the sum is 92.

The spelling of 55766899866755 in words is "fifty-five trillion, seven hundred sixty-six billion, eight hundred ninety-nine million, eight hundred sixty-six thousand, seven hundred fifty-five".