140366666 has 16 divisors (see below), whose sum is σ = 231841440. Its totient is φ = 63205680.

The previous prime is 140366659. The next prime is 140366693. The reversal of 140366666 is 666663041.

140366666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27461 + ... + 32168.

It is an arithmetic number, because the mean of its divisors is an integer number (14490090).

Almost surely, 2^140366666 is an apocalyptic number.

140366666 is a deficient number, since it is larger than the sum of its proper divisors (91474774).

140366666 is a wasteful number, since it uses less digits than its factorization.

140366666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59749.

The product of its (nonzero) digits is 93312, while the sum is 38.

The square root of 140366666 is about 11847.6439007931. The cubic root of 140366666 is about 519.7023271649.

It can be divided in two parts, 14036 and 6666, that added together give a palindrome (20702).

The spelling of 140366666 in words is "one hundred forty million, three hundred sixty-six thousand, six hundred sixty-six".