2145065604 has 24 divisors (see below), whose sum is σ = 5460167328. Its totient is φ = 650019840.

The previous prime is 2145065597. The next prime is 2145065617. The reversal of 2145065604 is 4065605412.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8125117 + ... + 8125380.

It is an arithmetic number, because the mean of its divisors is an integer number (227506972).

Almost surely, 2^2145065604 is an apocalyptic number.

It is an amenable number.

2145065604 is an abundant number, since it is smaller than the sum of its proper divisors (3315101724).

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

2145065604 is a wasteful number, since it uses less digits than its factorization.

2145065604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16250515 (or 16250513 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 2145065604 is about 46314.8529523737. The cubic root of 2145065604 is about 1289.6747380178.

The spelling of 2145065604 in words is "two billion, one hundred forty-five million, sixty-five thousand, six hundred four".