138884723230166 has 16 divisors (see below), whose sum is σ = 208373254684128. Its totient is φ = 69426973368000.

The previous prime is 138884723230159. The next prime is 138884723230199. The reversal of 138884723230166 is 661032327488831.

It is a super-2 number, since 2×138884723230166² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 138884723230099 and 138884723230108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166675631 + ... + 167506821.

It is an arithmetic number, because the mean of its divisors is an integer number (13023328417758).

Almost surely, 2^{138884723230166} is an apocalyptic number.

138884723230166 is a deficient number, since it is larger than the sum of its proper divisors (69488531453962).

138884723230166 is a wasteful number, since it uses less digits than its factorization.

138884723230166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849607.

The product of its (nonzero) digits is 55738368, while the sum is 62.

The spelling of 138884723230166 in words is "one hundred thirty-eight trillion, eight hundred eighty-four billion, seven hundred twenty-three million, two hundred thirty thousand, one hundred sixty-six".