2161576995 has 16 divisors (see below), whose sum is σ = 3463934112. Its totient is φ = 1151037440.

The previous prime is 2161576951. The next prime is 2161576997. The reversal of 2161576995 is 5996751612.

It is not a de Polignac number, because 2161576995 - 2²¹ = 2159479843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2161576997) 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, 102792 + ... + 122021.

It is an arithmetic number, because the mean of its divisors is an integer number (216495882).

Almost surely, 2^2161576995 is an apocalyptic number.

2161576995 is a deficient number, since it is larger than the sum of its proper divisors (1302357117).

2161576995 is a wasteful number, since it uses less digits than its factorization.

2161576995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225462.

The product of its digits is 1020600, while the sum is 51.

The square root of 2161576995 is about 46492.7628239063. The cubic root of 2161576995 is about 1292.9753238556.

The spelling of 2161576995 in words is "two billion, one hundred sixty-one million, five hundred seventy-six thousand, nine hundred ninety-five".