163370425220 has 24 divisors (see below), whose sum is σ = 343085500800. Its totient is φ = 65346720992.

The previous prime is 163370425219. The next prime is 163370425223. The reversal of 163370425220 is 22524073361.

It is a super-2 number, since 2×163370425220² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (163370425223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1646171 + ... + 1742589.

It is an arithmetic number, because the mean of its divisors is an integer number (14295229200).

Almost surely, 2^163370425220 is an apocalyptic number.

163370425220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163370425220 is an abundant number, since it is smaller than the sum of its proper divisors (179715075580).

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

163370425220 is a wasteful number, since it uses less digits than its factorization.

163370425220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181147 (or 181145 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 35.

Adding to 163370425220 its reverse (22524073361), we get a palindrome (185894498581).

The spelling of 163370425220 in words is "one hundred sixty-three billion, three hundred seventy million, four hundred twenty-five thousand, two hundred twenty".