138006670220 has 48 divisors (see below), whose sum is σ = 291138871968. Its totient is φ = 54950860800.

The previous prime is 138006670199. The next prime is 138006670231. The reversal of 138006670220 is 22076600831.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4127570 + ... + 4160870.

It is an arithmetic number, because the mean of its divisors is an integer number (6065393166).

Almost surely, 2^138006670220 is an apocalyptic number.

138006670220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138006670220 is an abundant number, since it is smaller than the sum of its proper divisors (153132201748).

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

138006670220 is a wasteful number, since it uses less digits than its factorization.

138006670220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34250 (or 34248 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The spelling of 138006670220 in words is "one hundred thirty-eight billion, six million, six hundred seventy thousand, two hundred twenty".