166140139383 has 24 divisors (see below), whose sum is σ = 255138934752. Its totient is φ = 103945478208.

The previous prime is 166140139351. The next prime is 166140139421. The reversal of 166140139383 is 383931041661.

It is a happy number.

166140139383 is a `hidden beast` number, since 16 + 614 + 0 + 13 + 9 + 3 + 8 + 3 = 666.

It is not a de Polignac number, because 166140139383 - 2⁵ = 166140139351 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166140139313) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7560816 + ... + 7582757.

It is an arithmetic number, because the mean of its divisors is an integer number (10630788948).

Almost surely, 2^166140139383 is an apocalyptic number.

166140139383 is a deficient number, since it is larger than the sum of its proper divisors (88998795369).

166140139383 is a wasteful number, since it uses less digits than its factorization.

166140139383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15143655 (or 15143652 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The spelling of 166140139383 in words is "one hundred sixty-six billion, one hundred forty million, one hundred thirty-nine thousand, three hundred eighty-three".