166350402 has 64 divisors (see below), whose sum is σ = 390635520. Its totient is φ = 52390800.

The previous prime is 166350383. The next prime is 166350413. The reversal of 166350402 is 204053661.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70827 + ... + 73137.

It is an arithmetic number, because the mean of its divisors is an integer number (6103680).

Almost surely, 2^166350402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166350402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195317760).

166350402 is an abundant number, since it is smaller than the sum of its proper divisors (224285118).

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

166350402 is a wasteful number, since it uses less digits than its factorization.

166350402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2396 (or 2390 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 166350402 is about 12897.6897931374. The cubic root of 166350402 is about 549.9728934299.

The spelling of 166350402 in words is "one hundred sixty-six million, three hundred fifty thousand, four hundred two".