15057217052109 has 6 divisors (see below), whose sum is σ = 21749313519726. Its totient is φ = 10038144701400.

The previous prime is 15057217052099. The next prime is 15057217052123. The reversal of 15057217052109 is 90125071275051.

15057217052109 is a `hidden beast` number, since 1 + 5 + 0 + 57 + 2 + 1 + 70 + 521 + 0 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 13166578302084 + 1890638750025 = 3628578^2 + 1375005^2 .

It is not a de Polignac number, because 15057217052109 - 2³⁷ = 14919778098637 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15057217051109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 836512058442 + ... + 836512058459.

It is an arithmetic number, because the mean of its divisors is an integer number (3624885586621).

Almost surely, 2^{15057217052109} is an apocalyptic number.

It is an amenable number.

15057217052109 is a deficient number, since it is larger than the sum of its proper divisors (6692096467617).

15057217052109 is a wasteful number, since it uses less digits than its factorization.

15057217052109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1673024116907 (or 1673024116904 counting only the distinct ones).

The product of its (nonzero) digits is 220500, while the sum is 45.

The spelling of 15057217052109 in words is "fifteen trillion, fifty-seven billion, two hundred seventeen million, fifty-two thousand, one hundred nine".