2161672498 has 8 divisors (see below), whose sum is σ = 3274613100. Its totient is φ = 1070134800.

The previous prime is 2161672463. The next prime is 2161672517. The reversal of 2161672498 is 8942761612.

It can be written as a sum of positive squares in 2 ways, for example, as 2016638649 + 145033849 = 44907^2 + 12043^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5350473 + ... + 5350876.

Almost surely, 2^2161672498 is an apocalyptic number.

2161672498 is a deficient number, since it is larger than the sum of its proper divisors (1112940602).

2161672498 is a wasteful number, since it uses less digits than its factorization.

2161672498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10701452.

The product of its digits is 290304, while the sum is 46.

The square root of 2161672498 is about 46493.7898863924. The cubic root of 2161672498 is about 1292.9943656947.

The spelling of 2161672498 in words is "two billion, one hundred sixty-one million, six hundred seventy-two thousand, four hundred ninety-eight".