139505249960 has 32 divisors (see below), whose sum is σ = 317860070400. Its totient is φ = 55095743040.

The previous prime is 139505249959. The next prime is 139505249987. The reversal of 139505249960 is 69942505931.

139505249960 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

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 7 ways as a sum of consecutive naturals, for example, 22070456 + ... + 22076775.

It is an arithmetic number, because the mean of its divisors is an integer number (9933127200).

Almost surely, 2^139505249960 is an apocalyptic number.

139505249960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139505249960 is an abundant number, since it is smaller than the sum of its proper divisors (178354820440).

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

139505249960 is a wasteful number, since it uses less digits than its factorization.

139505249960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44147321 (or 44147317 counting only the distinct ones).

The product of its (nonzero) digits is 2624400, while the sum is 53.

The spelling of 139505249960 in words is "one hundred thirty-nine billion, five hundred five million, two hundred forty-nine thousand, nine hundred sixty".