662942408256 has 280 divisors, whose sum is σ = 2051398609920. Its totient is φ = 211444992000.

The previous prime is 662942408239. The next prime is 662942408279. The reversal of 662942408256 is 652804249266.

662942408256 is a `hidden beast` number, since 6 + 62 + 94 + 240 + 8 + 256 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 14279481 + ... + 14325831.

Almost surely, 2^662942408256 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 662942408256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1025699304960).

662942408256 is an abundant number, since it is smaller than the sum of its proper divisors (1388456201664).

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

662942408256 is a wasteful number, since it uses less digits than its factorization.

662942408256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46495 (or 46476 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 54.

The spelling of 662942408256 in words is "six hundred sixty-two billion, nine hundred forty-two million, four hundred eight thousand, two hundred fifty-six".