140144405066 has 4 divisors (see below), whose sum is σ = 210216607602. Its totient is φ = 70072202532.

The previous prime is 140144404999. The next prime is 140144405087. The reversal of 140144405066 is 660504441041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 108880860841 + 31263544225 = 329971^2 + 176815^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35036101265 + ... + 35036101268.

Almost surely, 2^140144405066 is an apocalyptic number.

140144405066 is a deficient number, since it is larger than the sum of its proper divisors (70072202536).

140144405066 is an equidigital number, since it uses as much as digits as its factorization.

140144405066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70072202535.

The product of its (nonzero) digits is 46080, while the sum is 35.

The spelling of 140144405066 in words is "one hundred forty billion, one hundred forty-four million, four hundred five thousand, sixty-six".