11664178770 has 64 divisors (see below), whose sum is σ = 28115398656. Its totient is φ = 3096999360.

The previous prime is 11664178763. The next prime is 11664178781. The reversal of 11664178770 is 7787146611.

It is a happy number.

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, 9960285 + ... + 9961455.

It is an arithmetic number, because the mean of its divisors is an integer number (439303104).

Almost surely, 2^11664178770 is an apocalyptic number.

11664178770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11664178770 is an abundant number, since it is smaller than the sum of its proper divisors (16451219886).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11664178770 is a wasteful number, since it uses less digits than its factorization.

11664178770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2335.

The product of its (nonzero) digits is 395136, while the sum is 48.

The spelling of 11664178770 in words is "eleven billion, six hundred sixty-four million, one hundred seventy-eight thousand, seven hundred seventy".