662985574020 has 2304 divisors, whose sum is σ = 2965281177600. Its totient is φ = 119681971200.

The previous prime is 662985574003. The next prime is 662985574037. The reversal of 662985574020 is 20475589266.

662985574020 is a `hidden beast` number, since 6 + 6 + 29 + 8 + 557 + 40 + 20 = 666.

It is an interprime number because it is at equal distance from previous prime (662985574003) and next prime (662985574037).

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 767 ways as a sum of consecutive naturals, for example, 6196126807 + ... + 6196126913.

It is an arithmetic number, because the mean of its divisors is an integer number (1287014400).

Almost surely, 2^662985574020 is an apocalyptic number.

662985574020 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 662985574020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1482640588800).

662985574020 is an abundant number, since it is smaller than the sum of its proper divisors (2302295603580).

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

662985574020 is a wasteful number, since it uses less digits than its factorization.

662985574020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227 (or 208 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 54.

The spelling of 662985574020 in words is "six hundred sixty-two billion, nine hundred eighty-five million, five hundred seventy-four thousand, twenty".