55162145520 has 60 divisors (see below), whose sum is σ = 185252874456. Its totient is φ = 14709905280.

The previous prime is 55162145501. The next prime is 55162145539. The reversal of 55162145520 is 2554126155.

55162145520 is a `hidden beast` number, since 5 + 5 + 1 + 621 + 4 + 5 + 5 + 20 = 666.

It is an interprime number because it is at equal distance from previous prime (55162145501) and next prime (55162145539).

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (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, 38306326 + ... + 38307765.

Almost surely, 2^55162145520 is an apocalyptic number.

It is an amenable number.

55162145520 is an abundant number, since it is smaller than the sum of its proper divisors (130090728936).

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

55162145520 is a wasteful number, since it uses less digits than its factorization.

55162145520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76614110 (or 76614101 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

The spelling of 55162145520 in words is "fifty-five billion, one hundred sixty-two million, one hundred forty-five thousand, five hundred twenty".