166011433 has 16 divisors (see below), whose sum is σ = 196352640. Its totient is φ = 137402496.

The previous prime is 166011431. The next prime is 166011437. The reversal of 166011433 is 334110661.

It is a happy number.

It is not a de Polignac number, because 166011433 - 2¹ = 166011431 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 166011398 and 166011407.

It is not an unprimeable number, because it can be changed into a prime (166011431) 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, 23691 + ... + 29887.

It is an arithmetic number, because the mean of its divisors is an integer number (12272040).

Almost surely, 2^166011433 is an apocalyptic number.

It is an amenable number.

166011433 is a deficient number, since it is larger than the sum of its proper divisors (30341207).

166011433 is an equidigital number, since it uses as much as digits as its factorization.

166011433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6336.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 166011433 is about 12884.5424055338. The cubic root of 166011433 is about 549.5990830332.

The spelling of 166011433 in words is "one hundred sixty-six million, eleven thousand, four hundred thirty-three".