169630990722 has 30 divisors (see below), whose sum is σ = 380110818483. Its totient is φ = 56541916188.

The previous prime is 169630990709. The next prime is 169630990747. The reversal of 169630990722 is 227099036961.

169630990722 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 84815495361 + 84815495361 = 291231^2 + 291231^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=291231.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 5225979 + ... + 5258337.

Almost surely, 2^169630990722 is an apocalyptic number.

169630990722 is an abundant number, since it is smaller than the sum of its proper divisors (210479827761).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

169630990722 is an frugal number, since it uses more digits than its factorization.

169630990722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64732 (or 32364 counting only the distinct ones).

The product of its (nonzero) digits is 2204496, while the sum is 54.

The spelling of 169630990722 in words is "one hundred sixty-nine billion, six hundred thirty million, nine hundred ninety thousand, seven hundred twenty-two".