166200552196 has 72 divisors (see below), whose sum is σ = 368425108800. Its totient is φ = 65152987200.

The previous prime is 166200552187. The next prime is 166200552197. The reversal of 166200552196 is 691255002661.

It is not an unprimeable number, because it can be changed into a prime (166200552197) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 661480 + ... + 877471.

It is an arithmetic number, because the mean of its divisors is an integer number (5117015400).

Almost surely, 2^166200552196 is an apocalyptic number.

It is an amenable number.

166200552196 is an abundant number, since it is smaller than the sum of its proper divisors (202224556604).

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

166200552196 is a wasteful number, since it uses less digits than its factorization.

166200552196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1539017 (or 1539008 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 43.

The spelling of 166200552196 in words is "one hundred sixty-six billion, two hundred million, five hundred fifty-two thousand, one hundred ninety-six".