2661336799 has 12 divisors (see below), whose sum is σ = 2926521360. Its totient is φ = 2418363200.

The previous prime is 2661336767. The next prime is 2661336809. The reversal of 2661336799 is 9976331662.

It is not a de Polignac number, because 2661336799 - 2⁵ = 2661336767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2661336709) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 528807 + ... + 533815.

It is an arithmetic number, because the mean of its divisors is an integer number (243876780).

Almost surely, 2^2661336799 is an apocalyptic number.

2661336799 is a deficient number, since it is larger than the sum of its proper divisors (265184561).

2661336799 is a wasteful number, since it uses less digits than its factorization.

2661336799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9422 (or 9411 counting only the distinct ones).

The product of its digits is 2204496, while the sum is 52.

The square root of 2661336799 is about 51588.1459155105. The cubic root of 2661336799 is about 1385.7980515371.

The spelling of 2661336799 in words is "two billion, six hundred sixty-one million, three hundred thirty-six thousand, seven hundred ninety-nine".