139601940020 has 12 divisors (see below), whose sum is σ = 293164074084. Its totient is φ = 55840776000.

The previous prime is 139601940011. The next prime is 139601940053. The reversal of 139601940020 is 20049106931.

It can be written as a sum of positive squares in 2 ways, for example, as 48318194596 + 91283745424 = 219814^2 + 302132^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3490048481 + ... + 3490048520.

It is an arithmetic number, because the mean of its divisors is an integer number (24430339507).

Almost surely, 2^139601940020 is an apocalyptic number.

139601940020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139601940020 is an abundant number, since it is smaller than the sum of its proper divisors (153562134064).

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

139601940020 is a wasteful number, since it uses less digits than its factorization.

139601940020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6980097010 (or 6980097008 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 35.

The spelling of 139601940020 in words is "one hundred thirty-nine billion, six hundred one million, nine hundred forty thousand, twenty".