169720430169 has 8 divisors (see below), whose sum is σ = 226296037440. Its totient is φ = 113145888176.

The previous prime is 169720430147. The next prime is 169720430221. The reversal of 169720430169 is 961034027961.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 169720430169 - 2⁵ = 169720430137 is a prime.

It is a super-2 number, since 2×169720430169² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (169720430119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246499 + ... + 632615.

It is an arithmetic number, because the mean of its divisors is an integer number (28287004680).

Almost surely, 2^169720430169 is an apocalyptic number.

It is an amenable number.

169720430169 is a deficient number, since it is larger than the sum of its proper divisors (56575607271).

169720430169 is a wasteful number, since it uses less digits than its factorization.

169720430169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532639.

The product of its (nonzero) digits is 489888, while the sum is 48.

The spelling of 169720430169 in words is "one hundred sixty-nine billion, seven hundred twenty million, four hundred thirty thousand, one hundred sixty-nine".