2575770660 has 72 divisors (see below), whose sum is σ = 7923254976. Its totient is φ = 677194560.

The previous prime is 2575770581. The next prime is 2575770677. The reversal of 2575770660 is 660775752.

2575770660 is a `hidden beast` number, since 2 + 575 + 7 + 70 + 6 + 6 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87994 + ... + 113553.

It is an arithmetic number, because the mean of its divisors is an integer number (110045208).

Almost surely, 2^2575770660 is an apocalyptic number.

2575770660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2575770660 is an abundant number, since it is smaller than the sum of its proper divisors (5347484316).

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

2575770660 is a wasteful number, since it uses less digits than its factorization.

2575770660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201633 (or 201628 counting only the distinct ones).

The product of its (nonzero) digits is 617400, while the sum is 45.

The square root of 2575770660 is about 50752.0507960023. The cubic root of 2575770660 is about 1370.7841178756.

The spelling of 2575770660 in words is "two billion, five hundred seventy-five million, seven hundred seventy thousand, six hundred sixty".