662226620400 has 90 divisors (see below), whose sum is σ = 2298110337120. Its totient is φ = 176593764480.

The previous prime is 662226620383. The next prime is 662226620401. The reversal of 662226620400 is 4026622266.

It is a happy number.

662226620400 is a `hidden beast` number, since 6 + 6 + 2 + 2 + 26 + 620 + 4 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (90).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662226620401) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 91972320 + ... + 91979519.

Almost surely, 2^662226620400 is an apocalyptic number.

662226620400 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

662226620400 is an abundant number, since it is smaller than the sum of its proper divisors (1635883716720).

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

662226620400 is a wasteful number, since it uses less digits than its factorization.

662226620400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183951863 (or 183951849 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The spelling of 662226620400 in words is "six hundred sixty-two billion, two hundred twenty-six million, six hundred twenty thousand, four hundred".