166355450 has 48 divisors (see below), whose sum is σ = 333728640. Its totient is φ = 61488000.

The previous prime is 166355429. The next prime is 166355467. The reversal of 166355450 is 54553661.

It is a self number, because there is not a number n which added to its sum of digits gives 166355450.

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, 36815 + ... + 41085.

It is an arithmetic number, because the mean of its divisors is an integer number (6952680).

Almost surely, 2^166355450 is an apocalyptic number.

166355450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166355450 is an abundant number, since it is smaller than the sum of its proper divisors (167373190).

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

166355450 is a wasteful number, since it uses less digits than its factorization.

166355450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4343 (or 4338 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 35.

The square root of 166355450 is about 12897.8854856135. The cubic root of 166355450 is about 549.9784564564.

The spelling of 166355450 in words is "one hundred sixty-six million, three hundred fifty-five thousand, four hundred fifty".