140711666 has 16 divisors (see below), whose sum is σ = 223768320. Its totient is φ = 66245040.

The previous prime is 140711651. The next prime is 140711693. The reversal of 140711666 is 666117041.

It is a happy number.

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, 28376 + ... + 32963.

It is an arithmetic number, because the mean of its divisors is an integer number (13985520).

Almost surely, 2^140711666 is an apocalyptic number.

140711666 is a deficient number, since it is larger than the sum of its proper divisors (83056654).

140711666 is a wasteful number, since it uses less digits than its factorization.

140711666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61409.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 140711666 is about 11862.1948222072. The cubic root of 140711666 is about 520.1277619993.

The spelling of 140711666 in words is "one hundred forty million, seven hundred eleven thousand, six hundred sixty-six".