662139858432 has 480 divisors, whose sum is σ = 1992742456320. Its totient is φ = 195066593280.

The previous prime is 662139858421. The next prime is 662139858467. The reversal of 662139858432 is 234858931266.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 861039744 + ... + 861040512.

It is an arithmetic number, because the mean of its divisors is an integer number (4151546784).

Almost surely, 2^662139858432 is an apocalyptic number.

662139858432 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 662139858432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (996371228160).

662139858432 is an abundant number, since it is smaller than the sum of its proper divisors (1330602597888).

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

662139858432 is a wasteful number, since it uses less digits than its factorization.

662139858432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954 (or 925 counting only the distinct ones).

The product of its digits is 14929920, while the sum is 57.

The spelling of 662139858432 in words is "six hundred sixty-two billion, one hundred thirty-nine million, eight hundred fifty-eight thousand, four hundred thirty-two".