2479169661 has 16 divisors (see below), whose sum is σ = 3436752000. Its totient is φ = 1587757248.

The previous prime is 2479169657. The next prime is 2479169713. The reversal of 2479169661 is 1669619742.

It is not a de Polignac number, because 2479169661 - 2² = 2479169657 is a prime.

It is a super-2 number, since 2×2479169661² = 12292564416045709842, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2479169611) 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, 54286 + ... + 88911.

It is an arithmetic number, because the mean of its divisors is an integer number (214797000).

Almost surely, 2^2479169661 is an apocalyptic number.

It is an amenable number.

2479169661 is a deficient number, since it is larger than the sum of its proper divisors (957582339).

2479169661 is a wasteful number, since it uses less digits than its factorization.

2479169661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143428.

The product of its digits is 979776, while the sum is 51.

The square root of 2479169661 is about 49791.2608898389. The cubic root of 2479169661 is about 1353.4288076752.

The spelling of 2479169661 in words is "two billion, four hundred seventy-nine million, one hundred sixty-nine thousand, six hundred sixty-one".