625659750066 has 32 divisors (see below), whose sum is σ = 1347993759168. Its totient is φ = 192450847680.

The previous prime is 625659750061. The next prime is 625659750071. The reversal of 625659750066 is 660057956526.

It is an interprime number because it is at equal distance from previous prime (625659750061) and next prime (625659750071).

It is a junction number, because it is equal to n+sod(n) for n = 625659749988 and 625659750015.

It is not an unprimeable number, because it can be changed into a prime (625659750061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 993916 + ... + 1496391.

It is an arithmetic number, because the mean of its divisors is an integer number (42124804974).

Almost surely, 2^625659750066 is an apocalyptic number.

625659750066 is an abundant number, since it is smaller than the sum of its proper divisors (722334009102).

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

625659750066 is a wasteful number, since it uses less digits than its factorization.

625659750066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2493546.

The product of its (nonzero) digits is 20412000, while the sum is 57.

The spelling of 625659750066 in words is "six hundred twenty-five billion, six hundred fifty-nine million, seven hundred fifty thousand, sixty-six".