55577612412 has 162 divisors, whose sum is σ = 164431136688. Its totient is φ = 15782001984.

The previous prime is 55577612381. The next prime is 55577612449. The reversal of 55577612412 is 21421677555.

55577612412 is a `hidden beast` number, since 5 + 5 + 577 + 61 + 2 + 4 + 12 = 666.

55577612412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Its product of digits (588000) is a multiple of the sum of its prime divisors (672).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 151437453 + ... + 151437819.

Almost surely, 2^55577612412 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 55577612412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82215568344).

55577612412 is an abundant number, since it is smaller than the sum of its proper divisors (108853524276).

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

55577612412 is a wasteful number, since it uses less digits than its factorization.

55577612412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977 (or 672 counting only the distinct ones).

The product of its digits is 588000, while the sum is 45.

The spelling of 55577612412 in words is "fifty-five billion, five hundred seventy-seven million, six hundred twelve thousand, four hundred twelve".