11602661157491 has 16 divisors (see below), whose sum is σ = 11830601173248. Its totient is φ = 11375058645600.

The previous prime is 11602661157481. The next prime is 11602661157511. The reversal of 11602661157491 is 19475116620611.

It is a cyclic number.

It is not a de Polignac number, because 11602661157491 - 2³⁰ = 11601587415667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11602661157481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 441706940 + ... + 441733206.

It is an arithmetic number, because the mean of its divisors is an integer number (739412573328).

Almost surely, 2^{11602661157491} is an apocalyptic number.

11602661157491 is a deficient number, since it is larger than the sum of its proper divisors (227940015757).

11602661157491 is a wasteful number, since it uses less digits than its factorization.

11602661157491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32362.

The product of its (nonzero) digits is 544320, while the sum is 50.

The spelling of 11602661157491 in words is "eleven trillion, six hundred two billion, six hundred sixty-one million, one hundred fifty-seven thousand, four hundred ninety-one".