20166644666102 has 16 divisors (see below), whose sum is σ = 33014875946832. Its totient is φ = 9162514458720.

The previous prime is 20166644666099. The next prime is 20166644666117.

20166644666102 is nontrivially palindromic in base 10.

It is a super-3 number, since 3×20166644666102³ (a number of 41 digits) contains 333 as substring.

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, 207060593 + ... + 207157964.

It is an arithmetic number, because the mean of its divisors is an integer number (2063429746677).

Almost surely, 2^{20166644666102} is an apocalyptic number.

20166644666102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20166644666102 is a deficient number, since it is larger than the sum of its proper divisors (12848231280730).

20166644666102 is a wasteful number, since it uses less digits than its factorization.

20166644666102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414220783.

The product of its (nonzero) digits is 2985984, while the sum is 50.

The spelling of 20166644666102 in words is "twenty trillion, one hundred sixty-six billion, six hundred forty-four million, six hundred sixty-six thousand, one hundred two".