32161393542 has 16 divisors (see below), whose sum is σ = 64579056192. Its totient is φ = 10677753000.

The previous prime is 32161393531. The next prime is 32161393547. The reversal of 32161393542 is 24539316123.

It is a self number, because there is not a number n which added to its sum of digits gives 32161393542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32161393547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10676248 + ... + 10679259.

It is an arithmetic number, because the mean of its divisors is an integer number (4036191012).

Almost surely, 2^32161393542 is an apocalyptic number.

32161393542 is an abundant number, since it is smaller than the sum of its proper divisors (32417662650).

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

32161393542 is a wasteful number, since it uses less digits than its factorization.

32161393542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21355763.

The product of its digits is 116640, while the sum is 39.

The spelling of 32161393542 in words is "thirty-two billion, one hundred sixty-one million, three hundred ninety-three thousand, five hundred forty-two".