2161023610 has 8 divisors (see below), whose sum is σ = 3889842516. Its totient is φ = 864409440.

The previous prime is 2161023589. The next prime is 2161023649. The reversal of 2161023610 is 163201612.

It can be written as a sum of positive squares in 2 ways, for example, as 1741142529 + 419881081 = 41727^2 + 20491^2 .

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, 108051171 + ... + 108051190.

Almost surely, 2^2161023610 is an apocalyptic number.

2161023610 is a deficient number, since it is larger than the sum of its proper divisors (1728818906).

2161023610 is a wasteful number, since it uses less digits than its factorization.

2161023610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216102368.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 2161023610 is about 46486.8111403654. The cubic root of 2161023610 is about 1292.8649762993.

The spelling of 2161023610 in words is "two billion, one hundred sixty-one million, twenty-three thousand, six hundred ten".