138151340220 has 24 divisors (see below), whose sum is σ = 386823752784. Its totient is φ = 36840357376.

The previous prime is 138151340219. The next prime is 138151340279. The reversal of 138151340220 is 22043151831.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1151261109 + ... + 1151261228.

It is an arithmetic number, because the mean of its divisors is an integer number (16117656366).

Almost surely, 2^138151340220 is an apocalyptic number.

138151340220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138151340220 is an abundant number, since it is smaller than the sum of its proper divisors (248672412564).

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

138151340220 is a wasteful number, since it uses less digits than its factorization.

138151340220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2302522349 (or 2302522347 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The spelling of 138151340220 in words is "one hundred thirty-eight billion, one hundred fifty-one million, three hundred forty thousand, two hundred twenty".