2661092900 has 36 divisors (see below), whose sum is σ = 5883537492. Its totient is φ = 1044351360.

The previous prime is 2661092891. The next prime is 2661092921. The reversal of 2661092900 is 92901662.

It can be written as a sum of positive squares in 6 ways, for example, as 234151204 + 2426941696 = 15302^2 + 49264^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 245747 + ... + 256346.

It is an arithmetic number, because the mean of its divisors is an integer number (163431597).

Almost surely, 2^2661092900 is an apocalyptic number.

2661092900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2661092900 is an abundant number, since it is smaller than the sum of its proper divisors (3222444592).

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

2661092900 is a wasteful number, since it uses less digits than its factorization.

2661092900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502160 (or 502153 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 2661092900 is about 51585.7819558839. The cubic root of 2661092900 is about 1385.7557162860.

The spelling of 2661092900 in words is "two billion, six hundred sixty-one million, ninety-two thousand, nine hundred".