55150566984 has 128 divisors (see below), whose sum is σ = 154520524800. Its totient is φ = 18225262080.

The previous prime is 55150566973. The next prime is 55150567013. The reversal of 55150566984 is 48966505155.

55150566984 is a `hidden beast` number, since 5 + 51 + 505 + 6 + 6 + 9 + 84 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 55150566984.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13076044 + ... + 13080260.

It is an arithmetic number, because the mean of its divisors is an integer number (1207191600).

Almost surely, 2^55150566984 is an apocalyptic number.

55150566984 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55150566984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77260262400).

55150566984 is an abundant number, since it is smaller than the sum of its proper divisors (99369957816).

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

55150566984 is a wasteful number, since it uses less digits than its factorization.

55150566984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4740 (or 4730 counting only the distinct ones).

The product of its (nonzero) digits is 6480000, while the sum is 54.

The spelling of 55150566984 in words is "fifty-five billion, one hundred fifty million, five hundred sixty-six thousand, nine hundred eighty-four".