11916993154 has 64 divisors (see below), whose sum is σ = 21489131520. Its totient is φ = 4895856000.

The previous prime is 11916993139. The next prime is 11916993163. The reversal of 11916993154 is 45139961911.

It is a junction number, because it is equal to n+sod(n) for n = 11916993098 and 11916993107.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 913542 + ... + 926494.

It is an arithmetic number, because the mean of its divisors is an integer number (335767680).

Almost surely, 2^11916993154 is an apocalyptic number.

11916993154 is a deficient number, since it is larger than the sum of its proper divisors (9572138366).

11916993154 is a wasteful number, since it uses less digits than its factorization.

11916993154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13087.

The product of its digits is 262440, while the sum is 49.

The spelling of 11916993154 in words is "eleven billion, nine hundred sixteen million, nine hundred ninety-three thousand, one hundred fifty-four".