15432228565 has 8 divisors (see below), whose sum is σ = 19943187768. Its totient is φ = 11396107200.

The previous prime is 15432228563. The next prime is 15432228571. The reversal of 15432228565 is 56582223451.

It can be written as a sum of positive squares in 4 ways, for example, as 34644996 + 15397583569 = 5886^2 + 124087^2 .

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

It is not a de Polignac number, because 15432228565 - 2¹ = 15432228563 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 (15432228563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118709386 + ... + 118709515.

It is an arithmetic number, because the mean of its divisors is an integer number (2492898471).

Almost surely, 2^15432228565 is an apocalyptic number.

It is an amenable number.

15432228565 is a deficient number, since it is larger than the sum of its proper divisors (4510959203).

15432228565 is a wasteful number, since it uses less digits than its factorization.

15432228565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237418919.

The product of its digits is 576000, while the sum is 43.

The spelling of 15432228565 in words is "fifteen billion, four hundred thirty-two million, two hundred twenty-eight thousand, five hundred sixty-five".