169166666836 has 6 divisors (see below), whose sum is σ = 296041666970. Its totient is φ = 84583333416.

The previous prime is 169166666813. The next prime is 169166666861. The reversal of 169166666836 is 638666661961.

It can be written as a sum of positive squares in only one way, i.e., 156009200400 + 13157466436 = 394980^2 + 114706^2 .

It is a super-2 number, since 2×169166666836² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21145833351 + ... + 21145833358.

Almost surely, 2^169166666836 is an apocalyptic number.

It is an amenable number.

169166666836 is a deficient number, since it is larger than the sum of its proper divisors (126875000134).

169166666836 is a wasteful number, since it uses less digits than its factorization.

169166666836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42291666713 (or 42291666711 counting only the distinct ones).

The product of its digits is 60466176, while the sum is 64.

The spelling of 169166666836 in words is "one hundred sixty-nine billion, one hundred sixty-six million, six hundred sixty-six thousand, eight hundred thirty-six".