625666501380 has 24 divisors (see below), whose sum is σ = 1751866204032. Its totient is φ = 166844400352.

The previous prime is 625666501337. The next prime is 625666501423. The reversal of 625666501380 is 83105666526.

It is an interprime number because it is at equal distance from previous prime (625666501337) and next prime (625666501423).

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5213887452 + ... + 5213887571.

It is an arithmetic number, because the mean of its divisors is an integer number (72994425168).

Almost surely, 2^625666501380 is an apocalyptic number.

625666501380 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

625666501380 is an abundant number, since it is smaller than the sum of its proper divisors (1126199702652).

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

625666501380 is a wasteful number, since it uses less digits than its factorization.

625666501380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10427775035 (or 10427775033 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 48.

The spelling of 625666501380 in words is "six hundred twenty-five billion, six hundred sixty-six million, five hundred one thousand, three hundred eighty".