166003402 has 8 divisors (see below), whose sum is σ = 263652516. Its totient is φ = 78119232.

The previous prime is 166003393. The next prime is 166003417. The reversal of 166003402 is 204300661.

It can be written as a sum of positive squares in 2 ways, for example, as 142587481 + 23415921 = 11941^2 + 4839^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 2441193 + ... + 2441260.

Almost surely, 2^166003402 is an apocalyptic number.

166003402 is a deficient number, since it is larger than the sum of its proper divisors (97649114).

166003402 is a wasteful number, since it uses less digits than its factorization.

166003402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4882472.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 166003402 is about 12884.2307492531. The cubic root of 166003402 is about 549.5902203878.

It can be divided in two parts, 16600 and 3402, that added together give a palindrome (20002).

The spelling of 166003402 in words is "one hundred sixty-six million, three thousand, four hundred two".