12401000552166 has 32 divisors (see below), whose sum is σ = 25330614382080. Its totient is φ = 4045570965216.

The previous prime is 12401000552137. The next prime is 12401000552179. The reversal of 12401000552166 is 66125500010421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7205820 + ... + 8759328.

It is an arithmetic number, because the mean of its divisors is an integer number (791581699440).

Almost surely, 2^{12401000552166} is an apocalyptic number.

12401000552166 is an abundant number, since it is smaller than the sum of its proper divisors (12929613829914).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12401000552166 is a wasteful number, since it uses less digits than its factorization.

12401000552166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1581868.

The product of its (nonzero) digits is 14400, while the sum is 33.

Adding to 12401000552166 its reverse (66125500010421), we get a palindrome (78526500562587).

The spelling of 12401000552166 in words is "twelve trillion, four hundred one billion, five hundred fifty-two thousand, one hundred sixty-six".