15540433532 has 36 divisors (see below), whose sum is σ = 29465480016. Its totient is φ = 7168412160.

The previous prime is 15540433511. The next prime is 15540433543. The reversal of 15540433532 is 23533404551.

It is a happy number.

15540433532 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 15540433492 and 15540433501.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1401233 + ... + 1412279.

It is an arithmetic number, because the mean of its divisors is an integer number (818485556).

Almost surely, 2^15540433532 is an apocalyptic number.

It is an amenable number.

15540433532 is a deficient number, since it is larger than the sum of its proper divisors (13925046484).

15540433532 is a wasteful number, since it uses less digits than its factorization.

15540433532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13158 (or 13143 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 35.

The spelling of 15540433532 in words is "fifteen billion, five hundred forty million, four hundred thirty-three thousand, five hundred thirty-two".