2956279661 has 16 divisors (see below), whose sum is σ = 3047721600. Its totient is φ = 2866536000.

The previous prime is 2956279657. The next prime is 2956279681. The reversal of 2956279661 is 1669726592.

It is a cyclic number.

It is not a de Polignac number, because 2956279661 - 2² = 2956279657 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 (2956279681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1279175 + ... + 1281483.

It is an arithmetic number, because the mean of its divisors is an integer number (190482600).

Almost surely, 2^2956279661 is an apocalyptic number.

It is an amenable number.

2956279661 is a deficient number, since it is larger than the sum of its proper divisors (91441939).

2956279661 is a wasteful number, since it uses less digits than its factorization.

2956279661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2660.

The product of its digits is 2449440, while the sum is 53.

The square root of 2956279661 is about 54371.6806894913. The cubic root of 2956279661 is about 1435.2090750661.

The spelling of 2956279661 in words is "two billion, nine hundred fifty-six million, two hundred seventy-nine thousand, six hundred sixty-one".