11215162605 has 64 divisors (see below), whose sum is σ = 19076808960. Its totient is φ = 5616500736.

The previous prime is 11215162589. The next prime is 11215162613. The reversal of 11215162605 is 50626151211.

It is not a de Polignac number, because 11215162605 - 2⁴ = 11215162589 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4806019 + ... + 4808351.

It is an arithmetic number, because the mean of its divisors is an integer number (298075140).

Almost surely, 2^11215162605 is an apocalyptic number.

11215162605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11215162605 is a deficient number, since it is larger than the sum of its proper divisors (7861646355).

11215162605 is a wasteful number, since it uses less digits than its factorization.

11215162605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2670.

The product of its (nonzero) digits is 3600, while the sum is 30.

The spelling of 11215162605 in words is "eleven billion, two hundred fifteen million, one hundred sixty-two thousand, six hundred five".