2151617995 has 8 divisors (see below), whose sum is σ = 2582482320. Its totient is φ = 1720933920.

The previous prime is 2151617983. The next prime is 2151618011. The reversal of 2151617995 is 5997161512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-2151617995 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17236 + ... + 67825.

It is an arithmetic number, because the mean of its divisors is an integer number (322810290).

Almost surely, 2^2151617995 is an apocalyptic number.

2151617995 is a deficient number, since it is larger than the sum of its proper divisors (430864325).

2151617995 is an equidigital number, since it uses as much as digits as its factorization.

2151617995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90125.

The product of its digits is 170100, while the sum is 46.

The square root of 2151617995 is about 46385.5364849864. The cubic root of 2151617995 is about 1290.9865647757.

The spelling of 2151617995 in words is "two billion, one hundred fifty-one million, six hundred seventeen thousand, nine hundred ninety-five".