138061033320 has 128 divisors (see below), whose sum is σ = 488621629440. Its totient is φ = 30538840320.

The previous prime is 138061033291. The next prime is 138061033337. The reversal of 138061033320 is 23330160831.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2624902 + ... + 2676981.

It is an arithmetic number, because the mean of its divisors is an integer number (3817356480).

Almost surely, 2^138061033320 is an apocalyptic number.

138061033320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138061033320 is an abundant number, since it is smaller than the sum of its proper divisors (350560596120).

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

138061033320 is a wasteful number, since it uses less digits than its factorization.

138061033320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5301935 (or 5301931 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

The spelling of 138061033320 in words is "one hundred thirty-eight billion, sixty-one million, thirty-three thousand, three hundred twenty".