140164566 has 16 divisors (see below), whose sum is σ = 282537984. Its totient is φ = 46353384.

The previous prime is 140164561. The next prime is 140164573. The reversal of 140164566 is 665461041.

It is a happy number.

It is a super-2 number, since 2×140164566² = 39292211123936712, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140164561) 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, 91210 + ... + 92733.

It is an arithmetic number, because the mean of its divisors is an integer number (17658624).

Almost surely, 2^140164566 is an apocalyptic number.

140164566 is an abundant number, since it is smaller than the sum of its proper divisors (142373418).

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

140164566 is a wasteful number, since it uses less digits than its factorization.

140164566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184075.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 140164566 is about 11839.1117065429. Note that the first 3 decimals coincide. The cubic root of 140164566 is about 519.4527848009.

The spelling of 140164566 in words is "one hundred forty million, one hundred sixty-four thousand, five hundred sixty-six".