163320661454654 has 16 divisors (see below), whose sum is σ = 267253062701040. Its totient is φ = 74236366733760.

The previous prime is 163320661454647. The next prime is 163320661454663. The reversal of 163320661454654 is 456454166023361.

It is a self number, because there is not a number n which added to its sum of digits gives 163320661454654.

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, 9216989 + ... + 20287784.

It is an arithmetic number, because the mean of its divisors is an integer number (16703316418815).

Almost surely, 2^{163320661454654} is an apocalyptic number.

163320661454654 is a deficient number, since it is larger than the sum of its proper divisors (103932401246386).

163320661454654 is a wasteful number, since it uses less digits than its factorization.

163320661454654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29756395.

The product of its (nonzero) digits is 37324800, while the sum is 56.

The spelling of 163320661454654 in words is "one hundred sixty-three trillion, three hundred twenty billion, six hundred sixty-one million, four hundred fifty-four thousand, six hundred fifty-four".