11990903667 has 32 divisors (see below), whose sum is σ = 16966794240. Its totient is φ = 7511616000.

The previous prime is 11990903663. The next prime is 11990903669. The reversal of 11990903667 is 76630909911.

It is not a de Polignac number, because 11990903667 - 2² = 11990903663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11990903663) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3721117 + ... + 3724337.

It is an arithmetic number, because the mean of its divisors is an integer number (530212320).

Almost surely, 2^11990903667 is an apocalyptic number.

11990903667 is a deficient number, since it is larger than the sum of its proper divisors (4975890573).

11990903667 is a wasteful number, since it uses less digits than its factorization.

11990903667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3755.

The product of its (nonzero) digits is 551124, while the sum is 51.

The spelling of 11990903667 in words is "eleven billion, nine hundred ninety million, nine hundred three thousand, six hundred sixty-seven".