166153433 has 4 divisors (see below), whose sum is σ = 166260240. Its totient is φ = 166046628.

The previous prime is 166153417. The next prime is 166153453. The reversal of 166153433 is 334351661.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 334351661 = 7 ⋅47764523.

It is a cyclic number.

It is not a de Polignac number, because 166153433 - 2⁴ = 166153417 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 166153433.

It is not an unprimeable number, because it can be changed into a prime (166153453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51035 + ... + 54192.

It is an arithmetic number, because the mean of its divisors is an integer number (41565060).

Almost surely, 2^166153433 is an apocalyptic number.

It is an amenable number.

166153433 is a deficient number, since it is larger than the sum of its proper divisors (106807).

166153433 is a wasteful number, since it uses less digits than its factorization.

166153433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106806.

The product of its digits is 19440, while the sum is 32.

The square root of 166153433 is about 12890.0517066457. The cubic root of 166153433 is about 549.7557405743.

The spelling of 166153433 in words is "one hundred sixty-six million, one hundred fifty-three thousand, four hundred thirty-three".