662720257152 has 96 divisors (see below), whose sum is σ = 1989961721280. Its totient is φ = 211302102528.

The previous prime is 662720257123. The next prime is 662720257153. The reversal of 662720257152 is 251752027266.

662720257152 is a `hidden beast` number, since 6 + 6 + 2 + 7 + 20 + 2 + 571 + 52 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×662720257152² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 662720257098 and 662720257107.

It is not an unprimeable number, because it can be changed into a prime (662720257153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12479548 + ... + 12532539.

It is an arithmetic number, because the mean of its divisors is an integer number (20728767930).

Almost surely, 2^662720257152 is an apocalyptic number.

It is an amenable number.

662720257152 is an abundant number, since it is smaller than the sum of its proper divisors (1327241464128).

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

662720257152 is a wasteful number, since it uses less digits than its factorization.

662720257152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25012130 (or 25012115 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 45.

The spelling of 662720257152 in words is "six hundred sixty-two billion, seven hundred twenty million, two hundred fifty-seven thousand, one hundred fifty-two".