662722560 has 480 divisors, whose sum is σ = 2568646080. Its totient is φ = 162791424.

The previous prime is 662722549. The next prime is 662722589. The reversal of 662722560 is 65227266.

662722560 is a `hidden beast` number, since 6 + 627 + 2 + 25 + 6 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (480).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 14100457 + ... + 14100503.

It is an arithmetic number, because the mean of its divisors is an integer number (5351346).

Almost surely, 2^662722560 is an apocalyptic number.

662722560 is a gapful number since it is divisible by the number (60) 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 662722560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1284323040).

662722560 is an abundant number, since it is smaller than the sum of its proper divisors (1905923520).

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

662722560 is a wasteful number, since it uses less digits than its factorization.

662722560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103 (or 74 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 662722560 is about 25743.3983770597. The cubic root of 662722560 is about 871.8543089089.

The spelling of 662722560 in words is "six hundred sixty-two million, seven hundred twenty-two thousand, five hundred sixty".