2161460700 has 432 divisors, whose sum is σ = 8174310144. Its totient is φ = 485222400.

The previous prime is 2161460689. The next prime is 2161460713. The reversal of 2161460700 is 70641612.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 16499635 + ... + 16499765.

Almost surely, 2^2161460700 is an apocalyptic number.

2161460700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2161460700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4087155072).

2161460700 is an abundant number, since it is smaller than the sum of its proper divisors (6012849444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2161460700 is a wasteful number, since it uses less digits than its factorization.

2161460700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 2161460700 is about 46491.5121285596. The cubic root of 2161460700 is about 1292.9521356521.

It can be divided in two parts, 2161460 and 700, that added together give a triangular number (2162160 = T₂₀₇₉).

The spelling of 2161460700 in words is "two billion, one hundred sixty-one million, four hundred sixty thousand, seven hundred".