2136648667 has 16 divisors (see below), whose sum is σ = 2266704000. Its totient is φ = 2008419840.

The previous prime is 2136648659. The next prime is 2136648671. The reversal of 2136648667 is 7668466312.

It is a cyclic number.

It is not a de Polignac number, because 2136648667 - 2³ = 2136648659 is a prime.

It is a Duffinian number.

2136648667 is a modest number, since divided by 48667 gives 21366 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 2136648667.

It is not an unprimeable number, because it can be changed into a prime (2136648617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1799448 + ... + 1800634.

It is an arithmetic number, because the mean of its divisors is an integer number (141669000).

Almost surely, 2^2136648667 is an apocalyptic number.

2136648667 is a deficient number, since it is larger than the sum of its proper divisors (130055333).

2136648667 is a wasteful number, since it uses less digits than its factorization.

2136648667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1866.

The product of its digits is 1741824, while the sum is 49.

The square root of 2136648667 is about 46223.8971420628. The cubic root of 2136648667 is about 1287.9856925468.

The spelling of 2136648667 in words is "two billion, one hundred thirty-six million, six hundred forty-eight thousand, six hundred sixty-seven".