11649911696 has 10 divisors (see below), whose sum is σ = 22571703942. Its totient is φ = 5824955840.

The previous prime is 11649911687. The next prime is 11649911701. The reversal of 11649911696 is 69611994611.

It can be written as a sum of positive squares in only one way, i.e., 6948889600 + 4701022096 = 83360^2 + 68564^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364059725 + ... + 364059756.

Almost surely, 2^11649911696 is an apocalyptic number.

11649911696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11649911696 is a deficient number, since it is larger than the sum of its proper divisors (10921792246).

11649911696 is an equidigital number, since it uses as much as digits as its factorization.

11649911696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728119489 (or 728119483 counting only the distinct ones).

The product of its digits is 629856, while the sum is 53.

The spelling of 11649911696 in words is "eleven billion, six hundred forty-nine million, nine hundred eleven thousand, six hundred ninety-six".