15557152884 has 72 divisors (see below), whose sum is σ = 45474776928. Its totient is φ = 4102983360.

The previous prime is 15557152813. The next prime is 15557152913. The reversal of 15557152884 is 48825175551.

It is a super-2 number, since 2×15557152884² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1009962 + ... + 1025249.

It is an arithmetic number, because the mean of its divisors is an integer number (631594124).

Almost surely, 2^15557152884 is an apocalyptic number.

15557152884 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

15557152884 is an abundant number, since it is smaller than the sum of its proper divisors (29917624044).

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

15557152884 is a wasteful number, since it uses less digits than its factorization.

15557152884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2035245 (or 2035236 counting only the distinct ones).

The product of its digits is 2240000, while the sum is 51.

The spelling of 15557152884 in words is "fifteen billion, five hundred fifty-seven million, one hundred fifty-two thousand, eight hundred eighty-four".