15111980730 has 192 divisors, whose sum is σ = 51140108160. Its totient is φ = 3140121600.

The previous prime is 15111980711. The next prime is 15111980749. The reversal of 15111980730 is 3708911151.

It is an interprime number because it is at equal distance from previous prime (15111980711) and next prime (15111980749).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 93610 + ... + 197450.

It is an arithmetic number, because the mean of its divisors is an integer number (266354730).

Almost surely, 2^15111980730 is an apocalyptic number.

15111980730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 15111980730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25570054080).

15111980730 is an abundant number, since it is smaller than the sum of its proper divisors (36028127430).

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

15111980730 is a wasteful number, since it uses less digits than its factorization.

15111980730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103882 (or 103869 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 36.

The spelling of 15111980730 in words is "fifteen billion, one hundred eleven million, nine hundred eighty thousand, seven hundred thirty".