163045940428802 has 8 divisors (see below), whose sum is σ = 244570239414396. Its totient is φ = 81522527290672.

The previous prime is 163045940428747. The next prime is 163045940428817. The reversal of 163045940428802 is 208824049540361.

It can be written as a sum of positive squares in 2 ways, for example, as 161721809226121 + 1324131202681 = 12716989^2 + 1150709^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 221001533 + ... + 221738064.

Almost surely, 2^{163045940428802} is an apocalyptic number.

163045940428802 is a deficient number, since it is larger than the sum of its proper divisors (81524298985594).

163045940428802 is a wasteful number, since it uses less digits than its factorization.

163045940428802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442923732.

The product of its (nonzero) digits is 13271040, while the sum is 56.

The spelling of 163045940428802 in words is "one hundred sixty-three trillion, forty-five billion, nine hundred forty million, four hundred twenty-eight thousand, eight hundred two".