2142023665 has 16 divisors (see below), whose sum is σ = 2670140880. Its totient is φ = 1647636480.

The previous prime is 2142023659. The next prime is 2142023671. The reversal of 2142023665 is 5663202412.

It is an interprime number because it is at equal distance from previous prime (2142023659) and next prime (2142023671).

It can be written as a sum of positive squares in 8 ways, for example, as 4255969 + 2137767696 = 2063^2 + 46236^2 .

It is not a de Polignac number, because 2142023665 - 2³ = 2142023657 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4297 + ... + 65593.

It is an arithmetic number, because the mean of its divisors is an integer number (166883805).

Almost surely, 2^2142023665 is an apocalyptic number.

It is an amenable number.

2142023665 is a deficient number, since it is larger than the sum of its proper divisors (528117215).

2142023665 is a wasteful number, since it uses less digits than its factorization.

2142023665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61572.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 2142023665 is about 46282.0015232704. The cubic root of 2142023665 is about 1289.0648160639.

The spelling of 2142023665 in words is "two billion, one hundred forty-two million, twenty-three thousand, six hundred sixty-five".