163351645 has 8 divisors (see below), whose sum is σ = 206339040. Its totient is φ = 123803280.

The previous prime is 163351637. The next prime is 163351663. The reversal of 163351645 is 546153361.

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

It is not a de Polignac number, because 163351645 - 2³ = 163351637 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 163351645.

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, 859651 + ... + 859840.

It is an arithmetic number, because the mean of its divisors is an integer number (25792380).

Almost surely, 2^163351645 is an apocalyptic number.

It is an amenable number.

163351645 is a deficient number, since it is larger than the sum of its proper divisors (42987395).

163351645 is a wasteful number, since it uses less digits than its factorization.

163351645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1719515.

The product of its digits is 32400, while the sum is 34.

The square root of 163351645 is about 12780.9093964397. The cubic root of 163351645 is about 546.6480930549.

The spelling of 163351645 in words is "one hundred sixty-three million, three hundred fifty-one thousand, six hundred forty-five".