220820301738 has 64 divisors (see below), whose sum is σ = 532249885440. Its totient is φ = 67587264000.

The previous prime is 220820301707. The next prime is 220820301743. The reversal of 220820301738 is 837103028022.

It is a happy number.

It is a super-2 number, since 2×220820301738² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

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, 2895838 + ... + 2971113.

It is an arithmetic number, because the mean of its divisors is an integer number (8316404460).

Almost surely, 2^220820301738 is an apocalyptic number.

220820301738 is an abundant number, since it is smaller than the sum of its proper divisors (311429583702).

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

220820301738 is a wasteful number, since it uses less digits than its factorization.

220820301738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5867020 (or 5867014 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The spelling of 220820301738 in words is "two hundred twenty billion, eight hundred twenty million, three hundred one thousand, seven hundred thirty-eight".