57553878110661 has 24 divisors (see below), whose sum is σ = 83296100709120. Its totient is φ = 38294176890816.

The previous prime is 57553878110639. The next prime is 57553878110737. The reversal of 57553878110661 is 16601187835575.

57553878110661 is a `hidden beast` number, since 5 + 7 + 5 + 538 + 7 + 81 + 10 + 6 + 6 + 1 = 666.

57553878110661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 57553878110661 - 2⁵ = 57553878110629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57553878110461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24604050 + ... + 26841516.

It is an arithmetic number, because the mean of its divisors is an integer number (3470670862880).

Almost surely, 2^{57553878110661} is an apocalyptic number.

It is an amenable number.

57553878110661 is a deficient number, since it is larger than the sum of its proper divisors (25742222598459).

57553878110661 is a wasteful number, since it uses less digits than its factorization.

57553878110661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2243065 (or 2243062 counting only the distinct ones).

The product of its (nonzero) digits is 42336000, while the sum is 63.

The spelling of 57553878110661 in words is "fifty-seven trillion, five hundred fifty-three billion, eight hundred seventy-eight million, one hundred ten thousand, six hundred sixty-one".