11661501616107 has 64 divisors (see below), whose sum is σ = 19367895936000. Its totient is φ = 6089720652288.

The previous prime is 11661501616103. The next prime is 11661501616153. The reversal of 11661501616107 is 70161610516611.

It is not a de Polignac number, because 11661501616107 - 2² = 11661501616103 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11661501616103) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12186069 + ... + 13108137.

It is an arithmetic number, because the mean of its divisors is an integer number (302623374000).

Almost surely, 2^{11661501616107} is an apocalyptic number.

11661501616107 is a deficient number, since it is larger than the sum of its proper divisors (7706394319893).

11661501616107 is a wasteful number, since it uses less digits than its factorization.

11661501616107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923220.

The product of its (nonzero) digits is 45360, while the sum is 42.

The spelling of 11661501616107 in words is "eleven trillion, six hundred sixty-one billion, five hundred one million, six hundred sixteen thousand, one hundred seven".