139966858933 has 16 divisors (see below), whose sum is σ = 156385861632. Its totient is φ = 124169094000.

The previous prime is 139966858909. The next prime is 139966858979. The reversal of 139966858933 is 339858669931.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 139966858933 - 2⁵ = 139966858901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139966868933) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 380428 + ... + 651658.

It is an arithmetic number, because the mean of its divisors is an integer number (9774116352).

Almost surely, 2^139966858933 is an apocalyptic number.

It is an amenable number.

139966858933 is a deficient number, since it is larger than the sum of its proper divisors (16419002699).

139966858933 is a wasteful number, since it uses less digits than its factorization.

139966858933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272376.

The product of its digits is 226748160, while the sum is 70.

It can be divided in two parts, 139966 and 858933, that added together give a palindrome (998899).

The spelling of 139966858933 in words is "one hundred thirty-nine billion, nine hundred sixty-six million, eight hundred fifty-eight thousand, nine hundred thirty-three".