139412268666 has 32 divisors (see below), whose sum is σ = 337969137600. Its totient is φ = 42246141840.

The previous prime is 139412268641. The next prime is 139412268689. The reversal of 139412268666 is 666862214931.

139412268666 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117349801 + ... + 117350988.

It is an arithmetic number, because the mean of its divisors is an integer number (10561535550).

Almost surely, 2^139412268666 is an apocalyptic number.

139412268666 is an abundant number, since it is smaller than the sum of its proper divisors (198556868934).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139412268666 is a wasteful number, since it uses less digits than its factorization.

139412268666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234700811 (or 234700805 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 54.

The spelling of 139412268666 in words is "one hundred thirty-nine billion, four hundred twelve million, two hundred sixty-eight thousand, six hundred sixty-six".