15542620332 has 12 divisors (see below), whose sum is σ = 36266114136. Its totient is φ = 5180873440.

The previous prime is 15542620321. The next prime is 15542620339. The reversal of 15542620332 is 23302624551.

It is a happy number.

15542620332 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 15542620293 and 15542620302.

It is not an unprimeable number, because it can be changed into a prime (15542620339) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 647609169 + ... + 647609192.

It is an arithmetic number, because the mean of its divisors is an integer number (3022176178).

Almost surely, 2^15542620332 is an apocalyptic number.

15542620332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15542620332 is an abundant number, since it is smaller than the sum of its proper divisors (20723493804).

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

15542620332 is a wasteful number, since it uses less digits than its factorization.

15542620332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1295218368 (or 1295218366 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 33.

The spelling of 15542620332 in words is "fifteen billion, five hundred forty-two million, six hundred twenty thousand, three hundred thirty-two".