163722669903 has 48 divisors (see below), whose sum is σ = 270528279840. Its totient is φ = 97278015744.

The previous prime is 163722669889. The next prime is 163722669907. The reversal of 163722669903 is 309966227361.

163722669903 is a `hidden beast` number, since 1 + 6 + 372 + 266 + 9 + 9 + 0 + 3 = 666.

It is not a de Polignac number, because 163722669903 - 2⁹ = 163722669391 is a prime.

It is a super-2 number, since 2×163722669903² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 163722669903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163722669907) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17875 + ... + 572507.

It is an arithmetic number, because the mean of its divisors is an integer number (5636005830).

Almost surely, 2^163722669903 is an apocalyptic number.

163722669903 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

163722669903 is a deficient number, since it is larger than the sum of its proper divisors (106805609937).

163722669903 is a wasteful number, since it uses less digits than its factorization.

163722669903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554713 (or 554678 counting only the distinct ones).

The product of its (nonzero) digits is 4408992, while the sum is 54.

The spelling of 163722669903 in words is "one hundred sixty-three billion, seven hundred twenty-two million, six hundred sixty-nine thousand, nine hundred three".