662491812096 has 243 divisors, whose sum is σ = 1977346750743. Its totient is φ = 213316346880.

The previous prime is 662491812091. The next prime is 662491812187. The reversal of 662491812096 is 690218194266.

The square root of 662491812096 is 813936.

It is a perfect power (a square), and thus also a powerful number.

662491812096 is a `hidden beast` number, since 6 + 62 + 491 + 8 + 1 + 2 + 0 + 96 = 666.

It is not an unprimeable number, because it can be changed into a prime (662491812091) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1211136495 + ... + 1211137041.

Almost surely, 2^662491812096 is an apocalyptic number.

662491812096 is the 813936-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 662491812096

662491812096 is an abundant number, since it is smaller than the sum of its proper divisors (1314854938647).

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

662491812096 is an frugal number, since it uses more digits than its factorization.

662491812096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1178 (or 583 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The spelling of 662491812096 in words is "six hundred sixty-two billion, four hundred ninety-one million, eight hundred twelve thousand, ninety-six".