1604016001 has 4 divisors (see below), whose sum is σ = 1833161152. Its totient is φ = 1374870852.

The previous prime is 1604015993. The next prime is 1604016019. The reversal of 1604016001 is 1006104061.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 1604016001 - 2³ = 1604015993 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 1604016001.

It is not an unprimeable number, because it can be changed into a prime (1604016041) 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, 114572565 + ... + 114572578.

It is an arithmetic number, because the mean of its divisors is an integer number (458290288).

Almost surely, 2^1604016001 is an apocalyptic number.

It is an amenable number.

1604016001 is a deficient number, since it is larger than the sum of its proper divisors (229145151).

1604016001 is an equidigital number, since it uses as much as digits as its factorization.

1604016001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229145150.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 1604016001 is about 40050.1685514556. The cubic root of 1604016001 is about 1170.5848491999.

It can be divided in two parts, 16040 and 16001, that added together give a square (32041 = 179²).

The spelling of 1604016001 in words is "one billion, six hundred four million, sixteen thousand, one".