11668948720 has 80 divisors (see below), whose sum is σ = 31873397472. Its totient is φ = 3916846080.

The previous prime is 11668948703. The next prime is 11668948751. The reversal of 11668948720 is 2784986611.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 498567 + ... + 521446.

Almost surely, 2^11668948720 is an apocalyptic number.

11668948720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11668948720 is an abundant number, since it is smaller than the sum of its proper divisors (20204448752).

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

11668948720 is a wasteful number, since it uses less digits than its factorization.

11668948720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020050 (or 1020044 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 52.

The spelling of 11668948720 in words is "eleven billion, six hundred sixty-eight million, nine hundred forty-eight thousand, seven hundred twenty".