163201634420 has 24 divisors (see below), whose sum is σ = 373880108448. Its totient is φ = 59346048800.

The previous prime is 163201634419. The next prime is 163201634437. The reversal of 163201634420 is 24436102361.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 370912586 + ... + 370913025.

It is an arithmetic number, because the mean of its divisors is an integer number (15578337852).

Almost surely, 2^163201634420 is an apocalyptic number.

163201634420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

163201634420 is an abundant number, since it is smaller than the sum of its proper divisors (210678474028).

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

163201634420 is a wasteful number, since it uses less digits than its factorization.

163201634420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741825631 (or 741825629 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 163201634420 its reverse (24436102361), we get a palindrome (187637736781).

The spelling of 163201634420 in words is "one hundred sixty-three billion, two hundred one million, six hundred thirty-four thousand, four hundred twenty".