15432051516 has 48 divisors (see below), whose sum is σ = 41181176064. Its totient is φ = 4406046336.

The previous prime is 15432051497. The next prime is 15432051521. The reversal of 15432051516 is 61515023451.

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, 56271 + ... + 184473.

It is an arithmetic number, because the mean of its divisors is an integer number (857941168).

Almost surely, 2^15432051516 is an apocalyptic number.

It is an amenable number.

15432051516 is an abundant number, since it is smaller than the sum of its proper divisors (25749124548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15432051516 is a wasteful number, since it uses less digits than its factorization.

15432051516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129650 (or 129648 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 33.

Adding to 15432051516 its reverse (61515023451), we get a palindrome (76947074967).

The spelling of 15432051516 in words is "fifteen billion, four hundred thirty-two million, fifty-one thousand, five hundred sixteen".