166017120 has 48 divisors (see below), whose sum is σ = 522955440. Its totient is φ = 44271104.

The previous prime is 166017097. The next prime is 166017127. The reversal of 166017120 is 21710661.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166017127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172455 + ... + 173414.

It is an arithmetic number, because the mean of its divisors is an integer number (10894905).

Almost surely, 2^166017120 is an apocalyptic number.

166017120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166017120 is an abundant number, since it is smaller than the sum of its proper divisors (356938320).

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

166017120 is a wasteful number, since it uses less digits than its factorization.

166017120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345887 (or 345879 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 166017120 is about 12884.7630944461. The cubic root of 166017120 is about 549.6053587743.

Adding to 166017120 its reverse (21710661), we get a palindrome (187727781).

The spelling of 166017120 in words is "one hundred sixty-six million, seventeen thousand, one hundred twenty".