166501364001235 has 4 divisors (see below), whose sum is σ = 199801636801488. Its totient is φ = 133201091200984.

The previous prime is 166501364001223. The next prime is 166501364001281. The reversal of 166501364001235 is 532100463105661.

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

It is a cyclic number.

It is not a de Polignac number, because 166501364001235 - 2³³ = 166492774066643 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 166501364001191 and 166501364001200.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16650136400119 + ... + 16650136400128.

It is an arithmetic number, because the mean of its divisors is an integer number (49950409200372).

Almost surely, 2^{166501364001235} is an apocalyptic number.

166501364001235 is a deficient number, since it is larger than the sum of its proper divisors (33300272800253).

166501364001235 is an equidigital number, since it uses as much as digits as its factorization.

166501364001235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33300272800252.

The product of its (nonzero) digits is 388800, while the sum is 43.

The spelling of 166501364001235 in words is "one hundred sixty-six trillion, five hundred one billion, three hundred sixty-four million, one thousand, two hundred thirty-five".