15503357327272 has 16 divisors (see below), whose sum is σ = 29069778382740. Its totient is φ = 7751416425216.

The previous prime is 15503357327233. The next prime is 15503357327273. The reversal of 15503357327272 is 27272375330551.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 14620482858276 + 882874468996 = 3823674^2 + 939614^2 .

It is a super-2 number, since 2×15503357327272² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15503357327273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32528433 + ... + 33001600.

Almost surely, 2^{15503357327272} is an apocalyptic number.

It is an amenable number.

15503357327272 is a deficient number, since it is larger than the sum of its proper divisors (13566421055468).

15503357327272 is a wasteful number, since it uses less digits than its factorization.

15503357327272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65559612 (or 65559608 counting only the distinct ones).

The product of its (nonzero) digits is 9261000, while the sum is 52.

The spelling of 15503357327272 in words is "fifteen trillion, five hundred three billion, three hundred fifty-seven million, three hundred twenty-seven thousand, two hundred seventy-two".