660164842 has 32 divisors (see below), whose sum is σ = 1118880000. Its totient is φ = 290262528.

The previous prime is 660164839. The next prime is 660164851. The reversal of 660164842 is 248461066.

660164842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×660164842² = 871635237225769928, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40159 + ... + 54157.

It is an arithmetic number, because the mean of its divisors is an integer number (34965000).

Almost surely, 2^660164842 is an apocalyptic number.

660164842 is a deficient number, since it is larger than the sum of its proper divisors (458715158).

660164842 is a wasteful number, since it uses less digits than its factorization.

660164842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14110.

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 660164842 is about 25693.6731901065. The cubic root of 660164842 is about 870.7312485041.

The spelling of 660164842 in words is "six hundred sixty million, one hundred sixty-four thousand, eight hundred forty-two".