11566902479 has 16 divisors (see below), whose sum is σ = 13533194880. Its totient is φ = 9773955360.

The previous prime is 11566902461. The next prime is 11566902521. The reversal of 11566902479 is 97420966511.

It is a cyclic number.

It is not a de Polignac number, because 11566902479 - 2²⁰ = 11565853903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11566902419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 511037 + ... + 533190.

It is an arithmetic number, because the mean of its divisors is an integer number (845824680).

Almost surely, 2^11566902479 is an apocalyptic number.

11566902479 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

11566902479 is a deficient number, since it is larger than the sum of its proper divisors (1966292401).

11566902479 is a wasteful number, since it uses less digits than its factorization.

11566902479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044310.

The product of its (nonzero) digits is 816480, while the sum is 50.

The spelling of 11566902479 in words is "eleven billion, five hundred sixty-six million, nine hundred two thousand, four hundred seventy-nine".