163902791552 has 16 divisors (see below), whose sum is σ = 326525092800. Its totient is φ = 81951395712.

The previous prime is 163902791537. The next prime is 163902791557. The reversal of 163902791552 is 255197209361.

It is a tau number, because it is divible by the number of its divisors (16).

It is a self number, because there is not a number n which added to its sum of digits gives 163902791552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163902791557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 640245152 + ... + 640245407.

It is an arithmetic number, because the mean of its divisors is an integer number (20407818300).

Almost surely, 2^163902791552 is an apocalyptic number.

It is an amenable number.

163902791552 is a deficient number, since it is larger than the sum of its proper divisors (162622301248).

163902791552 is an equidigital number, since it uses as much as digits as its factorization.

163902791552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1280490573 (or 1280490561 counting only the distinct ones).

The product of its (nonzero) digits is 1020600, while the sum is 50.

The spelling of 163902791552 in words is "one hundred sixty-three billion, nine hundred two million, seven hundred ninety-one thousand, five hundred fifty-two".