140666602 has 16 divisors (see below), whose sum is σ = 224275392. Its totient is φ = 65940160.

The previous prime is 140666593. The next prime is 140666609. The reversal of 140666602 is 206666041.

It is not an unprimeable number, because it can be changed into a prime (140666609) by changing a digit.

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, 1077 + ... + 16807.

It is an arithmetic number, because the mean of its divisors is an integer number (14017212).

Almost surely, 2^140666602 is an apocalyptic number.

140666602 is a deficient number, since it is larger than the sum of its proper divisors (83608790).

140666602 is a wasteful number, since it uses less digits than its factorization.

140666602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16013.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 140666602 is about 11860.2951902556. The cubic root of 140666602 is about 520.0722310905.

The spelling of 140666602 in words is "one hundred forty million, six hundred sixty-six thousand, six hundred two".