662736015396 has 675 divisors, whose sum is σ = 2219848836513. Its totient is φ = 172325724480.

The previous prime is 662736015379. The next prime is 662736015401. The reversal of 662736015396 is 693510637266.

The square root of 662736015396 is 814086.

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

662736015396 is a `hidden beast` number, since 6 + 6 + 27 + 3 + 601 + 5 + 3 + 9 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 98037872100 + 564698143296 = 313110^2 + 751464^2 .

It is a super-2 number, since 2×662736015396² (a number of 24 digits) contains 22 as substring.

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 224 ways as a sum of consecutive naturals, for example, 9334310041 + ... + 9334310111.

Almost surely, 2^662736015396 is an apocalyptic number.

662736015396 is the 814086-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 662736015396

662736015396 is an abundant number, since it is smaller than the sum of its proper divisors (1557112821117).

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

662736015396 is an equidigital number, since it uses as much as digits as its factorization.

662736015396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 7348320, while the sum is 54.

The spelling of 662736015396 in words is "six hundred sixty-two billion, seven hundred thirty-six million, fifteen thousand, three hundred ninety-six".