163061643 has 16 divisors (see below), whose sum is σ = 225110016. Its totient is φ = 104881920.

The previous prime is 163061621. The next prime is 163061677. The reversal of 163061643 is 346160361.

It is not a de Polignac number, because 163061643 - 2⁵ = 163061611 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 163061643.

It is not an unprimeable number, because it can be changed into a prime (163061683) 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, 30346 + ... + 35312.

It is an arithmetic number, because the mean of its divisors is an integer number (14069376).

Almost surely, 2^163061643 is an apocalyptic number.

163061643 is a deficient number, since it is larger than the sum of its proper divisors (62048373).

163061643 is a wasteful number, since it uses less digits than its factorization.

163061643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5354.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 163061643 is about 12769.5592328005. The cubic root of 163061643 is about 546.3244090452.

The spelling of 163061643 in words is "one hundred sixty-three million, sixty-one thousand, six hundred forty-three".