2999666601 has 28 divisors (see below), whose sum is σ = 4693009728. Its totient is φ = 1912820184.

The previous prime is 2999666557. The next prime is 2999666617. The reversal of 2999666601 is 1066669992.

It is a happy number.

It is not a de Polignac number, because 2999666601 - 2¹⁰ = 2999665577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2999626601) by changing a digit.

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 27 ways as a sum of consecutive naturals, for example, 72685 + ... + 106218.

Almost surely, 2^2999666601 is an apocalyptic number.

It is an amenable number.

2999666601 is a deficient number, since it is larger than the sum of its proper divisors (1693343127).

2999666601 is an equidigital number, since it uses as much as digits as its factorization.

2999666601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178944 (or 178929 counting only the distinct ones).

The product of its (nonzero) digits is 1889568, while the sum is 54.

The square root of 2999666601 is about 54769.2121634044. The cubic root of 2999666601 is about 1442.1961411543.

The spelling of 2999666601 in words is "two billion, nine hundred ninety-nine million, six hundred sixty-six thousand, six hundred one".