11700751665 has 32 divisors (see below), whose sum is σ = 19857024000. Its totient is φ = 5866810560.

The previous prime is 11700751639. The next prime is 11700751747. The reversal of 11700751665 is 56615700711.

It is not a de Polignac number, because 11700751665 - 2⁷ = 11700751537 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 119365 + ... + 194034.

It is an arithmetic number, because the mean of its divisors is an integer number (620532000).

Almost surely, 2^11700751665 is an apocalyptic number.

11700751665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11700751665 is a deficient number, since it is larger than the sum of its proper divisors (8156272335).

11700751665 is a wasteful number, since it uses less digits than its factorization.

11700751665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313557.

The product of its (nonzero) digits is 44100, while the sum is 39.

The spelling of 11700751665 in words is "eleven billion, seven hundred million, seven hundred fifty-one thousand, six hundred sixty-five".