55319511138480 has 60 divisors (see below), whose sum is σ = 185781358242480. Its totient is φ = 14751869636736.

The previous prime is 55319511138473. The next prime is 55319511138499. The reversal of 55319511138480 is 8483111591355.

55319511138480 is a `hidden beast` number, since 5 + 5 + 3 + 19 + 5 + 11 + 138 + 480 = 666.

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

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, 38416326460 + ... + 38416327899.

It is an arithmetic number, because the mean of its divisors is an integer number (3096355970708).

Almost surely, 2^{55319511138480} is an apocalyptic number.

It is an amenable number.

55319511138480 is an abundant number, since it is smaller than the sum of its proper divisors (130461847104000).

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

55319511138480 is a wasteful number, since it uses less digits than its factorization.

55319511138480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76832654378 (or 76832654369 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 54.

The spelling of 55319511138480 in words is "fifty-five trillion, three hundred nineteen billion, five hundred eleven million, one hundred thirty-eight thousand, four hundred eighty".