55651005168 has 160 divisors (see below), whose sum is σ = 165229424640. Its totient is φ = 15962791680.

The previous prime is 55651005143. The next prime is 55651005169. The reversal of 55651005168 is 86150015655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55651005169) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22741321 + ... + 22743767.

It is an arithmetic number, because the mean of its divisors is an integer number (1032683904).

Almost surely, 2^55651005168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55651005168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82614712320).

55651005168 is an abundant number, since it is smaller than the sum of its proper divisors (109578419472).

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

55651005168 is a wasteful number, since it uses less digits than its factorization.

55651005168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4755 (or 4749 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 42.

The spelling of 55651005168 in words is "fifty-five billion, six hundred fifty-one million, five thousand, one hundred sixty-eight".