166229970 has 32 divisors (see below), whose sum is σ = 416299392. Its totient is φ = 42400512.

The previous prime is 166229953. The next prime is 166229971. The reversal of 166229970 is 79922661.

166229970 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (166229971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119767 + ... + 121146.

It is an arithmetic number, because the mean of its divisors is an integer number (13009356).

Almost surely, 2^166229970 is an apocalyptic number.

166229970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

166229970 is an abundant number, since it is smaller than the sum of its proper divisors (250069422).

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

166229970 is a wasteful number, since it uses less digits than its factorization.

166229970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240946.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 166229970 is about 12893.0202047464. The cubic root of 166229970 is about 549.8401408688.

The spelling of 166229970 in words is "one hundred sixty-six million, two hundred twenty-nine thousand, nine hundred seventy".