15215000816085 has 64 divisors (see below), whose sum is σ = 29459577139200. Its totient is φ = 6545999434752.

The previous prime is 15215000816069. The next prime is 15215000816089. The reversal of 15215000816085 is 58061800051251.

It is not a de Polignac number, because 15215000816085 - 2⁴ = 15215000816069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15215000816089) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 43449226 + ... + 43798004.

It is an arithmetic number, because the mean of its divisors is an integer number (460305892800).

Almost surely, 2^{15215000816085} is an apocalyptic number.

15215000816085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15215000816085 is a deficient number, since it is larger than the sum of its proper divisors (14244576323115).

15215000816085 is a wasteful number, since it uses less digits than its factorization.

15215000816085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373250.

The product of its (nonzero) digits is 96000, while the sum is 42.

The spelling of 15215000816085 in words is "fifteen trillion, two hundred fifteen billion, eight hundred sixteen thousand, eighty-five".