55918149120 has 840 divisors, whose sum is σ = 214709523336. Its totient is φ = 13956489216.

The previous prime is 55918149103. The next prime is 55918149137. The reversal of 55918149120 is 2194181955.

55918149120 is a `hidden beast` number, since 5 + 591 + 8 + 1 + 49 + 12 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (55918149103) and next prime (55918149137).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 83 ways as a sum of consecutive naturals, for example, 673712599 + ... + 673712681.

Almost surely, 2^55918149120 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 55918149120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107354761668).

55918149120 is an abundant number, since it is smaller than the sum of its proper divisors (158791374216).

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

55918149120 is an frugal number, since it uses more digits than its factorization.

55918149120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 45.

The spelling of 55918149120 in words is "fifty-five billion, nine hundred eighteen million, one hundred forty-nine thousand, one hundred twenty".