15515061150 has 48 divisors (see below), whose sum is σ = 38566375344. Its totient is φ = 4127777280.

The previous prime is 15515061131. The next prime is 15515061187. The reversal of 15515061150 is 5116051551.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 54489 + ... + 184388.

It is an arithmetic number, because the mean of its divisors is an integer number (803466153).

Almost surely, 2^15515061150 is an apocalyptic number.

15515061150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15515061150 is an abundant number, since it is smaller than the sum of its proper divisors (23051314194).

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

15515061150 is a wasteful number, since it uses less digits than its factorization.

15515061150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239325 (or 239320 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 30.

The spelling of 15515061150 in words is "fifteen billion, five hundred fifteen million, sixty-one thousand, one hundred fifty".