663425113626 has 24 divisors (see below), whose sum is σ = 1568095723584. Its totient is φ = 201037913160.

The previous prime is 663425113607. The next prime is 663425113633. The reversal of 663425113626 is 626311524366.

663425113626 is a `hidden beast` number, since 6 + 6 + 3 + 4 + 2 + 5 + 1 + 13 + 626 = 666.

It is a super-3 number, since 3×663425113626³ (a number of 36 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1675315746 + ... + 1675316141.

It is an arithmetic number, because the mean of its divisors is an integer number (65337321816).

Almost surely, 2^663425113626 is an apocalyptic number.

663425113626 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

663425113626 is an abundant number, since it is smaller than the sum of its proper divisors (904670609958).

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

663425113626 is a wasteful number, since it uses less digits than its factorization.

663425113626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3350631906 (or 3350631903 counting only the distinct ones).

The product of its digits is 933120, while the sum is 45.

The spelling of 663425113626 in words is "six hundred sixty-three billion, four hundred twenty-five million, one hundred thirteen thousand, six hundred twenty-six".