2161545410 has 32 divisors (see below), whose sum is σ = 4126723200. Its totient is φ = 812361472.

The previous prime is 2161545409. The next prime is 2161545433. The reversal of 2161545410 is 145451612.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91217 + ... + 112443.

It is an arithmetic number, because the mean of its divisors is an integer number (128960100).

Almost surely, 2^2161545410 is an apocalyptic number.

2161545410 is a deficient number, since it is larger than the sum of its proper divisors (1965177790).

2161545410 is a wasteful number, since it uses less digits than its factorization.

2161545410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21850.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 2161545410 is about 46492.4231461429. The cubic root of 2161545410 is about 1292.9690261658.

The spelling of 2161545410 in words is "two billion, one hundred sixty-one million, five hundred forty-five thousand, four hundred ten".