2660205652 has 12 divisors (see below), whose sum is σ = 5013464596. Its totient is φ = 1227787200.

The previous prime is 2660205649. The next prime is 2660205673. The reversal of 2660205652 is 2565020662.

It can be written as a sum of positive squares in 2 ways, for example, as 351787536 + 2308418116 = 18756^2 + 48046^2 .

It is a super-2 number, since 2×2660205652² = 14153388221865490208, which contains 22 as substring.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25578849 + ... + 25578952.

Almost surely, 2^2660205652 is an apocalyptic number.

It is an amenable number.

2660205652 is a deficient number, since it is larger than the sum of its proper divisors (2353258944).

2660205652 is a wasteful number, since it uses less digits than its factorization.

2660205652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51157818 (or 51157816 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 2660205652 is about 51577.1815050028. The cubic root of 2660205652 is about 1385.6016886359.

The spelling of 2660205652 in words is "two billion, six hundred sixty million, two hundred five thousand, six hundred fifty-two".