11765664646 has 8 divisors (see below), whose sum is σ = 18257065920. Its totient is φ = 5679976008.

The previous prime is 11765664641. The next prime is 11765664653. The reversal of 11765664646 is 64646656711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 11765664593 and 11765664602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11765664641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101428086 + ... + 101428201.

It is an arithmetic number, because the mean of its divisors is an integer number (2282133240).

Almost surely, 2^11765664646 is an apocalyptic number.

11765664646 is a deficient number, since it is larger than the sum of its proper divisors (6491401274).

11765664646 is a wasteful number, since it uses less digits than its factorization.

11765664646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202856318.

The product of its digits is 4354560, while the sum is 52.

The spelling of 11765664646 in words is "eleven billion, seven hundred sixty-five million, six hundred sixty-four thousand, six hundred forty-six".