425522403556660 has 192 divisors, whose sum is σ = 1000828608030720. Its totient is φ = 151197664665600.

The previous prime is 425522403556637. The next prime is 425522403556667. The reversal of 425522403556660 is 66655304225524.

It is a super-2 number, since 2×425522403556660² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425522403556667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 380836810 + ... + 381952510.

It is an arithmetic number, because the mean of its divisors is an integer number (5212649000160).

Almost surely, 2^{425522403556660} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 425522403556660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (500414304015360).

425522403556660 is an abundant number, since it is smaller than the sum of its proper divisors (575306204474060).

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

425522403556660 is a wasteful number, since it uses less digits than its factorization.

425522403556660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1116626 (or 1116624 counting only the distinct ones).

The product of its (nonzero) digits is 51840000, while the sum is 55.

The spelling of 425522403556660 in words is "four hundred twenty-five trillion, five hundred twenty-two billion, four hundred three million, five hundred fifty-six thousand, six hundred sixty".