55909446012 has 36 divisors (see below), whose sum is σ = 161516178096. Its totient is φ = 15974127360.

The previous prime is 55909446001. The next prime is 55909446029. The reversal of 55909446012 is 21064490955.

55909446012 is a `hidden beast` number, since 5 + 5 + 90 + 94 + 460 + 12 = 666.

55909446012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

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, 110931189 + ... + 110931692.

Almost surely, 2^55909446012 is an apocalyptic number.

It is an amenable number.

55909446012 is an abundant number, since it is smaller than the sum of its proper divisors (105606732084).

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

55909446012 is a wasteful number, since it uses less digits than its factorization.

55909446012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221862898 (or 221862893 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The spelling of 55909446012 in words is "fifty-five billion, nine hundred nine million, four hundred forty-six thousand, twelve".