166666632753 has 16 divisors (see below), whose sum is σ = 224107879680. Its totient is φ = 110171816976.

The previous prime is 166666632749. The next prime is 166666632767. The reversal of 166666632753 is 357236666661.

It is a happy number.

It is not a de Polignac number, because 166666632753 - 2² = 166666632749 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 166666632693 and 166666632702.

It is not an unprimeable number, because it can be changed into a prime (166666639753) 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, 260875 + ... + 633552.

It is an arithmetic number, because the mean of its divisors is an integer number (14006742480).

Almost surely, 2^166666632753 is an apocalyptic number.

It is an amenable number.

166666632753 is a deficient number, since it is larger than the sum of its proper divisors (57441246927).

166666632753 is a wasteful number, since it uses less digits than its factorization.

166666632753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894956.

The product of its digits is 29393280, while the sum is 57.

The spelling of 166666632753 in words is "one hundred sixty-six billion, six hundred sixty-six million, six hundred thirty-two thousand, seven hundred fifty-three".