166434100 has 36 divisors (see below), whose sum is σ = 412758304. Its totient is φ = 57062880.

The previous prime is 166434089. The next prime is 166434101. The reversal of 166434100 is 1434661.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166434101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 118182 + ... + 119581.

Almost surely, 2^166434100 is an apocalyptic number.

166434100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166434100 is an abundant number, since it is smaller than the sum of its proper divisors (246324204).

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

166434100 is a wasteful number, since it uses less digits than its factorization.

166434100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237784 (or 237777 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 166434100 is about 12900.9340747095. The cubic root of 166434100 is about 550.0651162573.

Adding to 166434100 its reverse (1434661), we get a palindrome (167868761).

The spelling of 166434100 in words is "one hundred sixty-six million, four hundred thirty-four thousand, one hundred".