166789434 has 48 divisors (see below), whose sum is σ = 389075616. Its totient is φ = 47527200.

The previous prime is 166789423. The next prime is 166789457. The reversal of 166789434 is 434987661.

It is a super-3 number, since 3×166789434³ (a number of 26 digits) contains 333 as substring.

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, 202744 + ... + 203564.

It is an arithmetic number, because the mean of its divisors is an integer number (8105742).

Almost surely, 2^166789434 is an apocalyptic number.

166789434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

166789434 is an abundant number, since it is smaller than the sum of its proper divisors (222286182).

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

166789434 is a wasteful number, since it uses less digits than its factorization.

166789434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1531 (or 1524 counting only the distinct ones).

The product of its digits is 870912, while the sum is 48.

The square root of 166789434 is about 12914.6983704615. The cubic root of 166789434 is about 550.4562979197.

The spelling of 166789434 in words is "one hundred sixty-six million, seven hundred eighty-nine thousand, four hundred thirty-four".