163315651701 has 4 divisors (see below), whose sum is σ = 217754202272. Its totient is φ = 108877101132.

The previous prime is 163315651691. The next prime is 163315651703. The reversal of 163315651701 is 107156513361.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 163315651701 - 2⁹ = 163315651189 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 163315651701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163315651703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27219275281 + ... + 27219275286.

It is an arithmetic number, because the mean of its divisors is an integer number (54438550568).

Almost surely, 2^163315651701 is an apocalyptic number.

It is an amenable number.

163315651701 is a deficient number, since it is larger than the sum of its proper divisors (54438550571).

163315651701 is an equidigital number, since it uses as much as digits as its factorization.

163315651701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54438550570.

The product of its (nonzero) digits is 56700, while the sum is 39.

The spelling of 163315651701 in words is "one hundred sixty-three billion, three hundred fifteen million, six hundred fifty-one thousand, seven hundred one".