662825957820 has 48 divisors (see below), whose sum is σ = 1998675198240. Its totient is φ = 163157158656.

The previous prime is 662825957771. The next prime is 662825957839. The reversal of 662825957820 is 28759528266.

It is a happy number.

662825957820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 424887655 + ... + 424889214.

It is an arithmetic number, because the mean of its divisors is an integer number (41639066630).

Almost surely, 2^662825957820 is an apocalyptic number.

662825957820 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

662825957820 is an abundant number, since it is smaller than the sum of its proper divisors (1335849240420).

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

662825957820 is a wasteful number, since it uses less digits than its factorization.

662825957820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849776894 (or 849776892 counting only the distinct ones).

The product of its (nonzero) digits is 29030400, while the sum is 60.

The spelling of 662825957820 in words is "six hundred sixty-two billion, eight hundred twenty-five million, nine hundred fifty-seven thousand, eight hundred twenty".