150865872865 has 4 divisors (see below), whose sum is σ = 181039047444. Its totient is φ = 120692698288.

The previous prime is 150865872841. The next prime is 150865872929. The reversal of 150865872865 is 568278568051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 568278568051 = 191 ⋅2975280461.

It can be written as a sum of positive squares in 2 ways, for example, as 100453499136 + 50412373729 = 316944^2 + 224527^2 .

It is a cyclic number.

It is not a de Polignac number, because 150865872865 - 2²⁵ = 150832318433 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15086587282 + ... + 15086587291.

It is an arithmetic number, because the mean of its divisors is an integer number (45259761861).

Almost surely, 2^150865872865 is an apocalyptic number.

It is an amenable number.

150865872865 is a deficient number, since it is larger than the sum of its proper divisors (30173174579).

150865872865 is an equidigital number, since it uses as much as digits as its factorization.

150865872865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30173174578.

The product of its (nonzero) digits is 32256000, while the sum is 61.

The spelling of 150865872865 in words is "one hundred fifty billion, eight hundred sixty-five million, eight hundred seventy-two thousand, eight hundred sixty-five".