662966556 has 48 divisors (see below), whose sum is σ = 1811040000. Its totient is φ = 184798080.

The previous prime is 662966519. The next prime is 662966581. The reversal of 662966556 is 655669266.

It is a super-2 number, since 2×662966556² = 879049308749002272, which contains 22 as substring.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 662966499 and 662966508.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92806 + ... + 99693.

It is an arithmetic number, because the mean of its divisors is an integer number (37730000).

Almost surely, 2^662966556 is an apocalyptic number.

It is an amenable number.

662966556 is an abundant number, since it is smaller than the sum of its proper divisors (1148073444).

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

662966556 is a wasteful number, since it uses less digits than its factorization.

662966556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192554 (or 192552 counting only the distinct ones).

The product of its digits is 3499200, while the sum is 51.

The square root of 662966556 is about 25748.1369423110. The cubic root of 662966556 is about 871.9612932767.

The spelling of 662966556 in words is "six hundred sixty-two million, nine hundred sixty-six thousand, five hundred fifty-six".