14921666580 has 48 divisors (see below), whose sum is σ = 41809783680. Its totient is φ = 3976338048.

The previous prime is 14921666561. The next prime is 14921666597. The reversal of 14921666580 is 8566612941.

It is a super-2 number, since 2×14921666580² (a number of 21 digits) contains 22 as substring.

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, 886 + ... + 172754.

It is an arithmetic number, because the mean of its divisors is an integer number (871037160).

Almost surely, 2^14921666580 is an apocalyptic number.

14921666580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14921666580 is an abundant number, since it is smaller than the sum of its proper divisors (26888117100).

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

14921666580 is a wasteful number, since it uses less digits than its factorization.

14921666580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173328 (or 173326 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 48.

The spelling of 14921666580 in words is "fourteen billion, nine hundred twenty-one million, six hundred sixty-six thousand, five hundred eighty".