166340203401123 has 48 divisors (see below), whose sum is σ = 243953455749120. Its totient is φ = 109196941492800.

The previous prime is 166340203401049. The next prime is 166340203401131. The reversal of 166340203401123 is 321104302043661.

166340203401123 is a `hidden beast` number, since 1 + 6 + 6 + 3 + 40 + 203 + 401 + 1 + 2 + 3 = 666.

166340203401123 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 166340203401123 - 2²⁵ = 166340169846691 is a prime.

It is a super-2 number, since 2×166340203401123² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (166340203401173) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2617808733 + ... + 2617872273.

It is an arithmetic number, because the mean of its divisors is an integer number (5082363661440).

Almost surely, 2^{166340203401123} is an apocalyptic number.

166340203401123 is a deficient number, since it is larger than the sum of its proper divisors (77613252347997).

166340203401123 is a wasteful number, since it uses less digits than its factorization.

166340203401123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68600 (or 68597 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

Adding to 166340203401123 its reverse (321104302043661), we get a palindrome (487444505444784).

The spelling of 166340203401123 in words is "one hundred sixty-six trillion, three hundred forty billion, two hundred three million, four hundred one thousand, one hundred twenty-three".