140323666 has 16 divisors (see below), whose sum is σ = 243851904. Its totient is φ = 59314464.

The previous prime is 140323637. The next prime is 140323699. The reversal of 140323666 is 666323041.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67630 + ... + 69673.

It is an arithmetic number, because the mean of its divisors is an integer number (15240744).

Almost surely, 2^140323666 is an apocalyptic number.

140323666 is a deficient number, since it is larger than the sum of its proper divisors (103528238).

140323666 is a wasteful number, since it uses less digits than its factorization.

140323666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137385.

The product of its (nonzero) digits is 15552, while the sum is 31.

The square root of 140323666 is about 11845.8290549881. The cubic root of 140323666 is about 519.6492531147.

The spelling of 140323666 in words is "one hundred forty million, three hundred twenty-three thousand, six hundred sixty-six".