15151332551550 has 48 divisors (see below), whose sum is σ = 40465712789040. Its totient is φ = 3729558781440.

The previous prime is 15151332551549. The next prime is 15151332551561. The reversal of 15151332551550 is 5515523315151.

It is a happy number.

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, 3884955115 + ... + 3884959014.

It is an arithmetic number, because the mean of its divisors is an integer number (843035683105).

Almost surely, 2^{15151332551550} is an apocalyptic number.

15151332551550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15151332551550 is an abundant number, since it is smaller than the sum of its proper divisors (25314380237490).

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

15151332551550 is a wasteful number, since it uses less digits than its factorization.

15151332551550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7769914157 (or 7769914152 counting only the distinct ones).

The product of its (nonzero) digits is 281250, while the sum is 42.

The spelling of 15151332551550 in words is "fifteen trillion, one hundred fifty-one billion, three hundred thirty-two million, five hundred fifty-one thousand, five hundred fifty".