11697155715 has 32 divisors (see below), whose sum is σ = 21552385536. Its totient is φ = 5306446080.

The previous prime is 11697155689. The next prime is 11697155731. The reversal of 11697155715 is 51755179611.

11697155715 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11697155715 - 2⁵ = 11697155683 is a prime.

It is a super-2 number, since 2×11697155715² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 411442 + ... + 438951.

It is an arithmetic number, because the mean of its divisors is an integer number (673512048).

Almost surely, 2^11697155715 is an apocalyptic number.

11697155715 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11697155715 is a deficient number, since it is larger than the sum of its proper divisors (9855229821).

11697155715 is a wasteful number, since it uses less digits than its factorization.

11697155715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850539.

The product of its digits is 330750, while the sum is 48.

The spelling of 11697155715 in words is "eleven billion, six hundred ninety-seven million, one hundred fifty-five thousand, seven hundred fifteen".