15545455912 has 16 divisors (see below), whose sum is σ = 33311691360. Its totient is φ = 6662338224.

The previous prime is 15545455883. The next prime is 15545455969. The reversal of 15545455912 is 21955454551.

15545455912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×15545455912² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138798658 + ... + 138798769.

It is an arithmetic number, because the mean of its divisors is an integer number (2081980710).

Almost surely, 2^15545455912 is an apocalyptic number.

It is an amenable number.

15545455912 is an abundant number, since it is smaller than the sum of its proper divisors (17766235448).

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

15545455912 is a wasteful number, since it uses less digits than its factorization.

15545455912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277597440 (or 277597436 counting only the distinct ones).

The product of its digits is 900000, while the sum is 46.

The spelling of 15545455912 in words is "fifteen billion, five hundred forty-five million, four hundred fifty-five thousand, nine hundred twelve".