11642168499 has 24 divisors (see below), whose sum is σ = 16845147072. Its totient is φ = 7148924640.

The previous prime is 11642168479. The next prime is 11642168507. The reversal of 11642168499 is 99486124611.

It is not a de Polignac number, because 11642168499 - 2⁵ = 11642168467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11642168479) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 212184 + ... + 261354.

It is an arithmetic number, because the mean of its divisors is an integer number (701881128).

Almost surely, 2^11642168499 is an apocalyptic number.

11642168499 is a deficient number, since it is larger than the sum of its proper divisors (5202978573).

11642168499 is a wasteful number, since it uses less digits than its factorization.

11642168499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49667 (or 49654 counting only the distinct ones).

The product of its digits is 746496, while the sum is 51.

The spelling of 11642168499 in words is "eleven billion, six hundred forty-two million, one hundred sixty-eight thousand, four hundred ninety-nine".