128316204165515 has 8 divisors (see below), whose sum is σ = 153979507381488. Its totient is φ = 102652921743840.

The previous prime is 128316204165503. The next prime is 128316204165521. The reversal of 128316204165515 is 515561402613821.

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

It is not a de Polignac number, because 128316204165515 - 2⁶ = 128316204165451 is a prime.

It is a super-2 number, since 2×128316204165515² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

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, 16975025 + ... + 23340605.

It is an arithmetic number, because the mean of its divisors is an integer number (19247438422686).

Almost surely, 2^{128316204165515} is an apocalyptic number.

128316204165515 is a deficient number, since it is larger than the sum of its proper divisors (25663303215973).

128316204165515 is an equidigital number, since it uses as much as digits as its factorization.

128316204165515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10397149.

The product of its (nonzero) digits is 1728000, while the sum is 50.

The spelling of 128316204165515 in words is "one hundred twenty-eight trillion, three hundred sixteen billion, two hundred four million, one hundred sixty-five thousand, five hundred fifteen".