15534532132 has 18 divisors (see below), whose sum is σ = 31623869382. Its totient is φ = 6657656544.

The previous prime is 15534532129. The next prime is 15534532141. The reversal of 15534532132 is 23123543551.

It can be written as a sum of positive squares in only one way, i.e., 15493776676 + 40755456 = 124474^2 + 6384^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39628713 + ... + 39629104.

Almost surely, 2^15534532132 is an apocalyptic number.

It is an amenable number.

15534532132 is an abundant number, since it is smaller than the sum of its proper divisors (16089337250).

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

15534532132 is a wasteful number, since it uses less digits than its factorization.

15534532132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79257835 (or 79257826 counting only the distinct ones).

The product of its digits is 54000, while the sum is 34.

The spelling of 15534532132 in words is "fifteen billion, five hundred thirty-four million, five hundred thirty-two thousand, one hundred thirty-two".