2167000665 has 32 divisors (see below), whose sum is σ = 3548344320. Its totient is φ = 1128880896.

The previous prime is 2167000531. The next prime is 2167000691. The reversal of 2167000665 is 5660007612.

It is not a de Polignac number, because 2167000665 - 2²¹ = 2164903513 is a prime.

It is a super-2 number, since 2×2167000665² = 9391783764220884450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 176104 + ... + 188006.

It is an arithmetic number, because the mean of its divisors is an integer number (110885760).

Almost surely, 2^2167000665 is an apocalyptic number.

It is an amenable number.

2167000665 is a deficient number, since it is larger than the sum of its proper divisors (1381343655).

2167000665 is a wasteful number, since it uses less digits than its factorization.

2167000665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12193.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 2167000665 is about 46551.0543919254. The cubic root of 2167000665 is about 1294.0558335062.

The spelling of 2167000665 in words is "two billion, one hundred sixty-seven million, six hundred sixty-five", and thus it is an aban number.