168545870 has 16 divisors (see below), whose sum is σ = 307911888. Its totient is φ = 66411840.

The previous prime is 168545869. The next prime is 168545879. The reversal of 168545870 is 78545861.

It is a happy number.

168545870 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168545879) 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, 125111 + ... + 126450.

It is an arithmetic number, because the mean of its divisors is an integer number (19244493).

Almost surely, 2^168545870 is an apocalyptic number.

168545870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168545870 is a deficient number, since it is larger than the sum of its proper divisors (139366018).

168545870 is a wasteful number, since it uses less digits than its factorization.

168545870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251635.

The product of its (nonzero) digits is 268800, while the sum is 44.

The square root of 168545870 is about 12982.5217119017. The cubic root of 168545870 is about 552.3818137491.

Subtracting from 168545870 its reverse (78545861), we obtain a palindrome (90000009).

The spelling of 168545870 in words is "one hundred sixty-eight million, five hundred forty-five thousand, eight hundred seventy".