166426501424660 has 24 divisors (see below), whose sum is σ = 355419308129760. Its totient is φ = 65442285305504.

The previous prime is 166426501424453. The next prime is 166426501424663. The reversal of 166426501424660 is 66424105624661.

It is a happy number.

It is a super-2 number, since 2×166426501424660² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166426501424663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70519702814 + ... + 70519705173.

It is an arithmetic number, because the mean of its divisors is an integer number (14809137838740).

Almost surely, 2^{166426501424660} is an apocalyptic number.

166426501424660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166426501424660 is an abundant number, since it is smaller than the sum of its proper divisors (188992806705100).

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

166426501424660 is a wasteful number, since it uses less digits than its factorization.

166426501424660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141039408055 (or 141039408053 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 53.

The spelling of 166426501424660 in words is "one hundred sixty-six trillion, four hundred twenty-six billion, five hundred one million, four hundred twenty-four thousand, six hundred sixty".