1268899170166 has 16 divisors (see below), whose sum is σ = 1907563068864. Its totient is φ = 633045546504.

The previous prime is 1268899170163. The next prime is 1268899170191. The reversal of 1268899170166 is 6610719988621.

It is a super-2 number, since 2×1268899170166² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1268899170098 and 1268899170107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1268899170163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3319741 + ... + 3682183.

It is an arithmetic number, because the mean of its divisors is an integer number (119222691804).

Almost surely, 2^{1268899170166} is an apocalyptic number.

1268899170166 is a deficient number, since it is larger than the sum of its proper divisors (638663898698).

1268899170166 is a wasteful number, since it uses less digits than its factorization.

1268899170166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366315.

The product of its (nonzero) digits is 15676416, while the sum is 64.

The spelling of 1268899170166 in words is "one trillion, two hundred sixty-eight billion, eight hundred ninety-nine million, one hundred seventy thousand, one hundred sixty-six".