166000646430451 has 12 divisors (see below), whose sum is σ = 193187972797848. Its totient is φ = 142223504150112.

The previous prime is 166000646430413. The next prime is 166000646430467. The reversal of 166000646430451 is 154034646000661.

166000646430451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 166000646430451 - 2¹⁵ = 166000646397683 is a prime.

It is not an unprimeable number, because it can be changed into a prime (166000646430481) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 747080866 + ... + 747303031.

It is an arithmetic number, because the mean of its divisors is an integer number (16098997733154).

Almost surely, 2^{166000646430451} is an apocalyptic number.

166000646430451 is a deficient number, since it is larger than the sum of its proper divisors (27187326367397).

166000646430451 is a wasteful number, since it uses less digits than its factorization.

166000646430451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1494386178 (or 1494386171 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 46.

The spelling of 166000646430451 in words is "one hundred sixty-six trillion, six hundred forty-six million, four hundred thirty thousand, four hundred fifty-one".