662086656 has 352 divisors, whose sum is σ = 2452469760. Its totient is φ = 171417600.

The previous prime is 662086651. The next prime is 662086657. The reversal of 662086656 is 656680266.

It is a tau number, because it is divible by the number of its divisors (352).

It is not an unprimeable number, because it can be changed into a prime (662086651) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2128741 + ... + 2129051.

Almost surely, 2^662086656 is an apocalyptic number.

662086656 is a gapful number since it is divisible by the number (66) 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 662086656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1226234880).

662086656 is an abundant number, since it is smaller than the sum of its proper divisors (1790383104).

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

662086656 is a wasteful number, since it uses less digits than its factorization.

662086656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358 (or 334 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The square root of 662086656 is about 25731.0445959739. The cubic root of 662086656 is about 871.5753620830.

The spelling of 662086656 in words is "six hundred sixty-two million, eighty-six thousand, six hundred fifty-six".