166453361320331 has 32 divisors (see below), whose sum is σ = 170610240245760. Its totient is φ = 162345017577600.

The previous prime is 166453361320327. The next prime is 166453361320349. The reversal of 166453361320331 is 133023163354661.

166453361320331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 166453361320331 - 2² = 166453361320327 is a prime.

It is a super-2 number, since 2×166453361320331² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166453361220331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12078460661 + ... + 12078474441.

It is an arithmetic number, because the mean of its divisors is an integer number (5331570007680).

Almost surely, 2^{166453361320331} is an apocalyptic number.

166453361320331 is a deficient number, since it is larger than the sum of its proper divisors (4156878925429).

166453361320331 is a wasteful number, since it uses less digits than its factorization.

166453361320331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16235.

The product of its (nonzero) digits is 2099520, while the sum is 47.

The spelling of 166453361320331 in words is "one hundred sixty-six trillion, four hundred fifty-three billion, three hundred sixty-one million, three hundred twenty thousand, three hundred thirty-one".