166603402 has 8 divisors (see below), whose sum is σ = 285605856. Its totient is φ = 71401452.

The previous prime is 166603373. The next prime is 166603429. The reversal of 166603402 is 204306661.

166603402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 5950108 + ... + 5950135.

It is an arithmetic number, because the mean of its divisors is an integer number (35700732).

Almost surely, 2^166603402 is an apocalyptic number.

166603402 is a deficient number, since it is larger than the sum of its proper divisors (119002454).

166603402 is a wasteful number, since it uses less digits than its factorization.

166603402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11900252.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 166603402 is about 12907.4940247904. The cubic root of 166603402 is about 550.2515675612.

The spelling of 166603402 in words is "one hundred sixty-six million, six hundred three thousand, four hundred two".