166485629279800 has 24 divisors (see below), whose sum is σ = 387079088076000. Its totient is φ = 66594251711840.

The previous prime is 166485629279693. The next prime is 166485629279819. The reversal of 166485629279800 is 8972926584661.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 416214073000 + ... + 416214073399.

It is an arithmetic number, because the mean of its divisors is an integer number (16128295336500).

Almost surely, 2^{166485629279800} is an apocalyptic number.

166485629279800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166485629279800 is an abundant number, since it is smaller than the sum of its proper divisors (220593458796200).

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

166485629279800 is a wasteful number, since it uses less digits than its factorization.

166485629279800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832428146415 (or 832428146406 counting only the distinct ones).

The product of its (nonzero) digits is 627056640, while the sum is 73.

The spelling of 166485629279800 in words is "one hundred sixty-six trillion, four hundred eighty-five billion, six hundred twenty-nine million, two hundred seventy-nine thousand, eight hundred".