15155031451345 has 8 divisors (see below), whose sum is σ = 18186810540264. Its totient is φ = 12123509961984.

The previous prime is 15155031451277. The next prime is 15155031451463. The reversal of 15155031451345 is 54315413055151.

It can be written as a sum of positive squares in 4 ways, for example, as 4936786284544 + 10218245166801 = 2221888^2 + 3196599^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 15155031451345 - 2²¹ = 15155029354193 is a prime.

It is a super-2 number, since 2×15155031451345² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64270434 + ... + 64505803.

It is an arithmetic number, because the mean of its divisors is an integer number (2273351317533).

Almost surely, 2^{15155031451345} is an apocalyptic number.

It is an amenable number.

15155031451345 is a deficient number, since it is larger than the sum of its proper divisors (3031779088919).

15155031451345 is a wasteful number, since it uses less digits than its factorization.

15155031451345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128799779.

The product of its (nonzero) digits is 450000, while the sum is 43.

The spelling of 15155031451345 in words is "fifteen trillion, one hundred fifty-five billion, thirty-one million, four hundred fifty-one thousand, three hundred forty-five".