11615642204 has 24 divisors (see below), whose sum is σ = 20669489568. Its totient is φ = 5710155840.

The previous prime is 11615642201. The next prime is 11615642231. The reversal of 11615642204 is 40224651611.

It is a super-2 number, since 2×11615642204² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11615642201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 644297 + ... + 662079.

It is an arithmetic number, because the mean of its divisors is an integer number (861228732).

Almost surely, 2^11615642204 is an apocalyptic number.

It is an amenable number.

11615642204 is a deficient number, since it is larger than the sum of its proper divisors (9053847364).

11615642204 is a wasteful number, since it uses less digits than its factorization.

11615642204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20525 (or 20523 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The spelling of 11615642204 in words is "eleven billion, six hundred fifteen million, six hundred forty-two thousand, two hundred four".