67139498220 has 48 divisors (see below), whose sum is σ = 188669308128. Its totient is φ = 17839226880.

The previous prime is 67139498213. The next prime is 67139498227. The reversal of 67139498220 is 2289493176.

It is an interprime number because it is at equal distance from previous prime (67139498213) and next prime (67139498227).

It is not an unprimeable number, because it can be changed into a prime (67139498227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2003221 + ... + 2036460.

It is an arithmetic number, because the mean of its divisors is an integer number (3930610586).

Almost surely, 2^67139498220 is an apocalyptic number.

67139498220 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

67139498220 is an abundant number, since it is smaller than the sum of its proper divisors (121529809908).

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

67139498220 is a wasteful number, since it uses less digits than its factorization.

67139498220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4039970 (or 4039968 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 51.

The spelling of 67139498220 in words is "sixty-seven billion, one hundred thirty-nine million, four hundred ninety-eight thousand, two hundred twenty".