11611215716 has 12 divisors (see below), whose sum is σ = 20449052988. Its totient is φ = 5768629152.

The previous prime is 11611215701. The next prime is 11611215731. The reversal of 11611215716 is 61751211611.

It is an interprime number because it is at equal distance from previous prime (11611215701) and next prime (11611215731).

It can be written as a sum of positive squares in 2 ways, for example, as 2307841600 + 9303374116 = 48040^2 + 96454^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9243971 + ... + 9245226.

It is an arithmetic number, because the mean of its divisors is an integer number (1704087749).

Almost surely, 2^11611215716 is an apocalyptic number.

It is an amenable number.

11611215716 is a deficient number, since it is larger than the sum of its proper divisors (8837837272).

11611215716 is a wasteful number, since it uses less digits than its factorization.

11611215716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18489358 (or 18489356 counting only the distinct ones).

The product of its digits is 2520, while the sum is 32.

The spelling of 11611215716 in words is "eleven billion, six hundred eleven million, two hundred fifteen thousand, seven hundred sixteen".