169109668 has 24 divisors (see below), whose sum is σ = 364236992. Its totient is φ = 66900384.

The previous prime is 169109663. The next prime is 169109687. The reversal of 169109668 is 866901961.

It is a super-2 number, since 2×169109668² = 57196159622140448, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (169109663) 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, 231930 + ... + 232657.

Almost surely, 2^169109668 is an apocalyptic number.

It is an amenable number.

169109668 is an abundant number, since it is smaller than the sum of its proper divisors (195127324).

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

169109668 is a wasteful number, since it uses less digits than its factorization.

169109668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464611 (or 464609 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 169109668 is about 13004.2173159326. The cubic root of 169109668 is about 552.9970471607.

The spelling of 169109668 in words is "one hundred sixty-nine million, one hundred nine thousand, six hundred sixty-eight".