11916929115 has 96 divisors (see below), whose sum is σ = 26540458560. Its totient is φ = 5028645888.

The previous prime is 11916929111. The next prime is 11916929137. The reversal of 11916929115 is 51192961911.

It is a happy number.

It is not a de Polignac number, because 11916929115 - 2² = 11916929111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (11916929111) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 16707 + ... + 155283.

It is an arithmetic number, because the mean of its divisors is an integer number (276463110).

Almost surely, 2^11916929115 is an apocalyptic number.

11916929115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11916929115 is an abundant number, since it is smaller than the sum of its proper divisors (14623529445).

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

11916929115 is a wasteful number, since it uses less digits than its factorization.

11916929115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138618 (or 138605 counting only the distinct ones).

The product of its digits is 43740, while the sum is 45.

The spelling of 11916929115 in words is "eleven billion, nine hundred sixteen million, nine hundred twenty-nine thousand, one hundred fifteen".