166535353194 has 48 divisors (see below), whose sum is σ = 394230877248. Its totient is φ = 45940777344.

The previous prime is 166535353181. The next prime is 166535353211. The reversal of 166535353194 is 491353535661.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2322067 + ... + 2392710.

It is an arithmetic number, because the mean of its divisors is an integer number (8213143276).

Almost surely, 2^166535353194 is an apocalyptic number.

166535353194 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

166535353194 is an abundant number, since it is smaller than the sum of its proper divisors (227695524054).

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

166535353194 is a wasteful number, since it uses less digits than its factorization.

166535353194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4714847 (or 4714818 counting only the distinct ones).

The product of its digits is 4374000, while the sum is 51.

The spelling of 166535353194 in words is "one hundred sixty-six billion, five hundred thirty-five million, three hundred fifty-three thousand, one hundred ninety-four".