666025425713724 has 48 divisors (see below), whose sum is σ = 1596537796791168. Its totient is φ = 215943707827008.

The previous prime is 666025425713717. The next prime is 666025425713729. The reversal of 666025425713724 is 427317524520666.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666025425713729) 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, 222603754 + ... + 225575889.

It is an arithmetic number, because the mean of its divisors is an integer number (33261204099816).

Almost surely, 2^{666025425713724} is an apocalyptic number.

It is an amenable number.

666025425713724 is an abundant number, since it is smaller than the sum of its proper divisors (930512371077444).

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

666025425713724 is a wasteful number, since it uses less digits than its factorization.

666025425713724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448183034 (or 448183032 counting only the distinct ones).

The product of its (nonzero) digits is 101606400, while the sum is 60.

The spelling of 666025425713724 in words is "six hundred sixty-six trillion, twenty-five billion, four hundred twenty-five million, seven hundred thirteen thousand, seven hundred twenty-four".