1604166366 has 16 divisors (see below), whose sum is σ = 3499999488. Its totient is φ = 486111000.

The previous prime is 1604166307. The next prime is 1604166367. The reversal of 1604166366 is 6636614061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1604166367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12152710 + ... + 12152841.

It is an arithmetic number, because the mean of its divisors is an integer number (218749968).

Almost surely, 2^1604166366 is an apocalyptic number.

1604166366 is an abundant number, since it is smaller than the sum of its proper divisors (1895833122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1604166366 is a wasteful number, since it uses less digits than its factorization.

1604166366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24305567.

The product of its (nonzero) digits is 93312, while the sum is 39.

The square root of 1604166366 is about 40052.0457155437. The cubic root of 1604166366 is about 1170.6214260360.

The spelling of 1604166366 in words is "one billion, six hundred four million, one hundred sixty-six thousand, three hundred sixty-six".