2611290020 has 12 divisors (see below), whose sum is σ = 5483709084. Its totient is φ = 1044516000.

The previous prime is 2611289999. The next prime is 2611290047. The reversal of 2611290020 is 200921162.

It can be written as a sum of positive squares in 2 ways, for example, as 2069704036 + 541585984 = 45494^2 + 23272^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65282231 + ... + 65282270.

It is an arithmetic number, because the mean of its divisors is an integer number (456975757).

Almost surely, 2^2611290020 is an apocalyptic number.

2611290020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2611290020 is an abundant number, since it is smaller than the sum of its proper divisors (2872419064).

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

2611290020 is a wasteful number, since it uses less digits than its factorization.

2611290020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130564510 (or 130564508 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 2611290020 is about 51100.7829685613. The cubic root of 2611290020 is about 1377.0563206927.

The spelling of 2611290020 in words is "two billion, six hundred eleven million, two hundred ninety thousand, twenty".