11166997974 has 32 divisors (see below), whose sum is σ = 24438015360. Its totient is φ = 3373708800.

The previous prime is 11166997957. The next prime is 11166997981. The reversal of 11166997974 is 47979966111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 233739 + ... + 277430.

It is an arithmetic number, because the mean of its divisors is an integer number (763687980).

Almost surely, 2^11166997974 is an apocalyptic number.

11166997974 is an abundant number, since it is smaller than the sum of its proper divisors (13271017386).

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

11166997974 is a wasteful number, since it uses less digits than its factorization.

11166997974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511516.

The product of its digits is 5143824, while the sum is 60.

The spelling of 11166997974 in words is "eleven billion, one hundred sixty-six million, nine hundred ninety-seven thousand, nine hundred seventy-four".