42166455156 has 36 divisors (see below), whose sum is σ = 121814204512. Its totient is φ = 12047558544.

The previous prime is 42166455103. The next prime is 42166455169. The reversal of 42166455156 is 65155466124.

42166455156 is a `hidden beast` number, since 42 + 1 + 6 + 6 + 4 + 551 + 56 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83663350 + ... + 83663853.

Almost surely, 2^42166455156 is an apocalyptic number.

It is an amenable number.

42166455156 is an abundant number, since it is smaller than the sum of its proper divisors (79647749356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42166455156 is a wasteful number, since it uses less digits than its factorization.

42166455156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167327220 (or 167327215 counting only the distinct ones).

The product of its digits is 864000, while the sum is 45.

The spelling of 42166455156 in words is "forty-two billion, one hundred sixty-six million, four hundred fifty-five thousand, one hundred fifty-six".