13607761665 has 32 divisors (see below), whose sum is σ = 22102502400. Its totient is φ = 7147663040.

The previous prime is 13607761649. The next prime is 13607761693. The reversal of 13607761665 is 56616770631.

13607761665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13607761665 - 2⁴ = 13607761649 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1078966 + ... + 1091504.

It is an arithmetic number, because the mean of its divisors is an integer number (690703200).

Almost surely, 2^13607761665 is an apocalyptic number.

13607761665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13607761665 is a deficient number, since it is larger than the sum of its proper divisors (8494740735).

13607761665 is a wasteful number, since it uses less digits than its factorization.

13607761665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13637.

The product of its (nonzero) digits is 952560, while the sum is 48.

The spelling of 13607761665 in words is "thirteen billion, six hundred seven million, seven hundred sixty-one thousand, six hundred sixty-five".