163606220426465 has 8 divisors (see below), whose sum is σ = 196328733026688. Its totient is φ = 130884130664560.

The previous prime is 163606220426449. The next prime is 163606220426471. The reversal of 163606220426465 is 564624022606361.

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

It is not a de Polignac number, because 163606220426465 - 2⁴ = 163606220426449 is a prime.

It is a Duffinian number.

It is a Curzon 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, 104857721 + ... + 106406550.

It is an arithmetic number, because the mean of its divisors is an integer number (24541091628336).

Almost surely, 2^{163606220426465} is an apocalyptic number.

It is an amenable number.

163606220426465 is a deficient number, since it is larger than the sum of its proper divisors (32722512600223).

163606220426465 is a wasteful number, since it uses less digits than its factorization.

163606220426465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211419159.

The product of its (nonzero) digits is 14929920, while the sum is 53.

The spelling of 163606220426465 in words is "one hundred sixty-three trillion, six hundred six billion, two hundred twenty million, four hundred twenty-six thousand, four hundred sixty-five".