15045432355021 has 16 divisors (see below), whose sum is σ = 15743541974400. Its totient is φ = 14351022766080.

The previous prime is 15045432354961. The next prime is 15045432355043. The reversal of 15045432355021 is 12055323454051.

It is a cyclic number.

It is not a de Polignac number, because 15045432355021 - 2²³ = 15045423966413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15045432365021) 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 15 ways as a sum of consecutive naturals, for example, 17687686 + ... + 18518776.

It is an arithmetic number, because the mean of its divisors is an integer number (983971373400).

Almost surely, 2^{15045432355021} is an apocalyptic number.

It is an amenable number.

15045432355021 is a deficient number, since it is larger than the sum of its proper divisors (698109619379).

15045432355021 is a wasteful number, since it uses less digits than its factorization.

15045432355021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833316.

The product of its (nonzero) digits is 360000, while the sum is 40.

The spelling of 15045432355021 in words is "fifteen trillion, forty-five billion, four hundred thirty-two million, three hundred fifty-five thousand, twenty-one".