2159101065 has 32 divisors (see below), whose sum is σ = 3990301056. Its totient is φ = 985256960.

The previous prime is 2159101037. The next prime is 2159101067. The reversal of 2159101065 is 5601019512.

It is not a de Polignac number, because 2159101065 - 2⁵ = 2159101033 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2159101067) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 382062 + ... + 387671.

It is an arithmetic number, because the mean of its divisors is an integer number (124696908).

Almost surely, 2^2159101065 is an apocalyptic number.

It is an amenable number.

2159101065 is a deficient number, since it is larger than the sum of its proper divisors (1831199991).

2159101065 is a wasteful number, since it uses less digits than its factorization.

2159101065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769769.

The product of its (nonzero) digits is 2700, while the sum is 30.

The square root of 2159101065 is about 46466.1281472860. The cubic root of 2159101065 is about 1292.4814653638.

The spelling of 2159101065 in words is "two billion, one hundred fifty-nine million, one hundred one thousand, sixty-five".