166745536 has 28 divisors (see below), whose sum is σ = 331490320. Its totient is φ = 83220480.

The previous prime is 166745521. The next prime is 166745573. The reversal of 166745536 is 635547661.

It is a junction number, because it is equal to n+sod(n) for n = 166745492 and 166745501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38320 + ... + 42448.

It is an arithmetic number, because the mean of its divisors is an integer number (11838940).

Almost surely, 2^166745536 is an apocalyptic number.

166745536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

166745536 is a deficient number, since it is larger than the sum of its proper divisors (164744784).

166745536 is an equidigital number, since it uses as much as digits as its factorization.

166745536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4772 (or 4762 counting only the distinct ones).

The product of its digits is 453600, while the sum is 43.

The square root of 166745536 is about 12912.9987222179. The cubic root of 166745536 is about 550.4080013935.

It can be divided in two parts, 166745 and 536, that added together give a square (167281 = 409²).

The spelling of 166745536 in words is "one hundred sixty-six million, seven hundred forty-five thousand, five hundred thirty-six".