3199077661 has 16 divisors (see below), whose sum is σ = 3467520000. Its totient is φ = 2933895168.

The previous prime is 3199077647. The next prime is 3199077689. The reversal of 3199077661 is 1667709913.

It is a cyclic number.

It is not a de Polignac number, because 3199077661 - 2⁷ = 3199077533 is a prime.

It is a super-2 number, since 2×3199077661² = 20468195762218461842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3199077611) 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, 1599340 + ... + 1601338.

It is an arithmetic number, because the mean of its divisors is an integer number (216720000).

Almost surely, 2^3199077661 is an apocalyptic number.

It is an amenable number.

3199077661 is a deficient number, since it is larger than the sum of its proper divisors (268442339).

3199077661 is a wasteful number, since it uses less digits than its factorization.

3199077661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2748.

The product of its (nonzero) digits is 428652, while the sum is 49.

The square root of 3199077661 is about 56560.3895053773. The cubic root of 3199077661 is about 1473.4710056044.

The spelling of 3199077661 in words is "three billion, one hundred ninety-nine million, seventy-seven thousand, six hundred sixty-one".