163478299299 has 32 divisors (see below), whose sum is σ = 266183216640. Its totient is φ = 87114465792.

The previous prime is 163478299297. The next prime is 163478299417. The reversal of 163478299299 is 992992874361.

It is not a de Polignac number, because 163478299299 - 2¹ = 163478299297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (163478299297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2061649 + ... + 2139474.

It is an arithmetic number, because the mean of its divisors is an integer number (8318225520).

Almost surely, 2^163478299299 is an apocalyptic number.

163478299299 is a deficient number, since it is larger than the sum of its proper divisors (102704917341).

163478299299 is a wasteful number, since it uses less digits than its factorization.

163478299299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4201259.

The product of its digits is 105815808, while the sum is 69.

The spelling of 163478299299 in words is "one hundred sixty-three billion, four hundred seventy-eight million, two hundred ninety-nine thousand, two hundred ninety-nine".