169252256628 has 144 divisors (see below), whose sum is σ = 534422412160. Its totient is φ = 43971662592.

The previous prime is 169252256627. The next prime is 169252256647. The reversal of 169252256628 is 826652252961.

It is a happy number.

169252256628 is a `hidden beast` number, since 1 + 6 + 9 + 2 + 5 + 2 + 2 + 5 + 6 + 628 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169252256623) 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, 166063 + ... + 605046.

Almost surely, 2^169252256628 is an apocalyptic number.

169252256628 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

169252256628 is an abundant number, since it is smaller than the sum of its proper divisors (365170155532).

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

169252256628 is a wasteful number, since it uses less digits than its factorization.

169252256628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771206 (or 771201 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 54.

The spelling of 169252256628 in words is "one hundred sixty-nine billion, two hundred fifty-two million, two hundred fifty-six thousand, six hundred twenty-eight".