15200221745045 has 16 divisors (see below), whose sum is σ = 19321631191728. Its totient is φ = 11439890165760.

The previous prime is 15200221745039. The next prime is 15200221745057. The reversal of 15200221745045 is 54054712200251.

It can be written as a sum of positive squares in 8 ways, for example, as 1743598766116 + 13456622978929 = 1320454^2 + 3668327^2 .

It is not a de Polignac number, because 15200221745045 - 2²⁰ = 15200220696469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38730776 + ... + 39121265.

It is an arithmetic number, because the mean of its divisors is an integer number (1207601949483).

Almost surely, 2^{15200221745045} is an apocalyptic number.

It is an amenable number.

15200221745045 is a deficient number, since it is larger than the sum of its proper divisors (4121409446683).

15200221745045 is a wasteful number, since it uses less digits than its factorization.

15200221745045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77854360.

The product of its (nonzero) digits is 112000, while the sum is 38.

Adding to 15200221745045 its reverse (54054712200251), we get a palindrome (69254933945296).

The spelling of 15200221745045 in words is "fifteen trillion, two hundred billion, two hundred twenty-one million, seven hundred forty-five thousand, forty-five".