163442565406306 has 32 divisors (see below), whose sum is σ = 247509761184000. Its totient is φ = 80942543563200.

The previous prime is 163442565406303. The next prime is 163442565406331. The reversal of 163442565406306 is 603604565244361.

It is a super-2 number, since 2×163442565406306² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (163442565406301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 796661316 + ... + 796866448.

It is an arithmetic number, because the mean of its divisors is an integer number (7734680037000).

Almost surely, 2^{163442565406306} is an apocalyptic number.

163442565406306 is a deficient number, since it is larger than the sum of its proper divisors (84067195777694).

163442565406306 is a wasteful number, since it uses less digits than its factorization.

163442565406306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212994.

The product of its (nonzero) digits is 37324800, while the sum is 55.

The spelling of 163442565406306 in words is "one hundred sixty-three trillion, four hundred forty-two billion, five hundred sixty-five million, four hundred six thousand, three hundred six".