2005157137915 has 4 divisors (see below), whose sum is σ = 2406188565504. Its totient is φ = 1604125710328.

The previous prime is 2005157137897. The next prime is 2005157137931. The reversal of 2005157137915 is 5197317515002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2005157137915 - 2⁷ = 2005157137787 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, 200515713787 + ... + 200515713796.

It is an arithmetic number, because the mean of its divisors is an integer number (601547141376).

Almost surely, 2^{2005157137915} is an apocalyptic number.

2005157137915 is a deficient number, since it is larger than the sum of its proper divisors (401031427589).

2005157137915 is an equidigital number, since it uses as much as digits as its factorization.

2005157137915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401031427588.

The product of its (nonzero) digits is 330750, while the sum is 46.

The spelling of 2005157137915 in words is "two trillion, five billion, one hundred fifty-seven million, one hundred thirty-seven thousand, nine hundred fifteen".