12401150406566 has 4 divisors (see below), whose sum is σ = 18601725609852. Its totient is φ = 6200575203282.

The previous prime is 12401150406563. The next prime is 12401150406587. The reversal of 12401150406566 is 66560405110421.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12401150406563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3100287601640 + ... + 3100287601643.

It is an arithmetic number, because the mean of its divisors is an integer number (4650431402463).

Almost surely, 2^{12401150406566} is an apocalyptic number.

12401150406566 is a deficient number, since it is larger than the sum of its proper divisors (6200575203286).

12401150406566 is an equidigital number, since it uses as much as digits as its factorization.

12401150406566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6200575203285.

The product of its (nonzero) digits is 172800, while the sum is 41.

Adding to 12401150406566 its reverse (66560405110421), we get a palindrome (78961555516987).

The spelling of 12401150406566 in words is "twelve trillion, four hundred one billion, one hundred fifty million, four hundred six thousand, five hundred sixty-six".