163021390361696 has 96 divisors (see below), whose sum is σ = 340846164449280. Its totient is φ = 76486366365696.

The previous prime is 163021390361671. The next prime is 163021390361701. The reversal of 163021390361696 is 696163093120361.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 245012315 + ... + 245676773.

It is an arithmetic number, because the mean of its divisors is an integer number (3550480879680).

Almost surely, 2^{163021390361696} is an apocalyptic number.

163021390361696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 163021390361696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170423082224640).

163021390361696 is an abundant number, since it is smaller than the sum of its proper divisors (177824774087584).

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

163021390361696 is a wasteful number, since it uses less digits than its factorization.

163021390361696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665836 (or 665828 counting only the distinct ones).

The product of its (nonzero) digits is 5668704, while the sum is 56.

The spelling of 163021390361696 in words is "one hundred sixty-three trillion, twenty-one billion, three hundred ninety million, three hundred sixty-one thousand, six hundred ninety-six".