55651005156 has 12 divisors (see below), whose sum is σ = 129852345392. Its totient is φ = 18550335048.

The previous prime is 55651005143. The next prime is 55651005169. The reversal of 55651005156 is 65150015655.

It is an interprime number because it is at equal distance from previous prime (55651005143) and next prime (55651005169).

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2318791870 + ... + 2318791893.

Almost surely, 2^55651005156 is an apocalyptic number.

It is an amenable number.

55651005156 is an abundant number, since it is smaller than the sum of its proper divisors (74201340236).

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

55651005156 is a wasteful number, since it uses less digits than its factorization.

55651005156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4637583770 (or 4637583768 counting only the distinct ones).

The product of its (nonzero) digits is 112500, while the sum is 39.

The spelling of 55651005156 in words is "fifty-five billion, six hundred fifty-one million, five thousand, one hundred fifty-six".