2661077156 has 12 divisors (see below), whose sum is σ = 4676873292. Its totient is φ = 1324827648.

The previous prime is 2661077147. The next prime is 2661077173. The reversal of 2661077156 is 6517701662.

It can be written as a sum of positive squares in 2 ways, for example, as 523494400 + 2137582756 = 22880^2 + 46234^2 .

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, 1426685 + ... + 1428548.

It is an arithmetic number, because the mean of its divisors is an integer number (389739441).

Almost surely, 2^2661077156 is an apocalyptic number.

It is an amenable number.

2661077156 is a deficient number, since it is larger than the sum of its proper divisors (2015796136).

2661077156 is a wasteful number, since it uses less digits than its factorization.

2661077156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2855470 (or 2855468 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 2661077156 is about 51585.6293554707. The cubic root of 2661077156 is about 1385.7529834012.

The spelling of 2661077156 in words is "two billion, six hundred sixty-one million, seventy-seven thousand, one hundred fifty-six".