163146315902 has 4 divisors (see below), whose sum is σ = 244719473856. Its totient is φ = 81573157950.

The previous prime is 163146315901. The next prime is 163146315911. The reversal of 163146315902 is 209513641361.

It is a happy number.

163146315902 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 209513641361 = 19559 ⋅10711879.

It is a self number, because there is not a number n which added to its sum of digits gives 163146315902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163146315901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40786578974 + ... + 40786578977.

It is an arithmetic number, because the mean of its divisors is an integer number (61179868464).

Almost surely, 2^163146315902 is an apocalyptic number.

163146315902 is a deficient number, since it is larger than the sum of its proper divisors (81573157954).

163146315902 is an equidigital number, since it uses as much as digits as its factorization.

163146315902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81573157953.

The product of its (nonzero) digits is 116640, while the sum is 41.

The spelling of 163146315902 in words is "one hundred sixty-three billion, one hundred forty-six million, three hundred fifteen thousand, nine hundred two".