163426816 has 40 divisors (see below), whose sum is σ = 373190400. Its totient is φ = 70038528.

The previous prime is 163426793. The next prime is 163426841. The reversal of 163426816 is 618624361.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19216 + ... + 26383.

It is an arithmetic number, because the mean of its divisors is an integer number (9329760).

Almost surely, 2^163426816 is an apocalyptic number.

163426816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

163426816 is an abundant number, since it is smaller than the sum of its proper divisors (209763584).

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

163426816 is an frugal number, since it uses more digits than its factorization.

163426816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45624 (or 45608 counting only the distinct ones).

The product of its digits is 41472, while the sum is 37.

The square root of 163426816 is about 12783.8498113831. The cubic root of 163426816 is about 546.7319321906.

The spelling of 163426816 in words is "one hundred sixty-three million, four hundred twenty-six thousand, eight hundred sixteen".