2164472500 has 60 divisors (see below), whose sum is σ = 4939193952. Its totient is φ = 828124000.

The previous prime is 2164472461. The next prime is 2164472501. The reversal of 2164472500 is 52744612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2164472501) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 38679 + ... + 76321.

Almost surely, 2^2164472500 is an apocalyptic number.

2164472500 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 2164472500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2469596976).

2164472500 is an abundant number, since it is smaller than the sum of its proper divisors (2774721452).

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

2164472500 is a wasteful number, since it uses less digits than its factorization.

2164472500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37690 (or 37673 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 2164472500 is about 46523.8917116786. The cubic root of 2164472500 is about 1293.5523942246.

The spelling of 2164472500 in words is "two billion, one hundred sixty-four million, four hundred seventy-two thousand, five hundred".