1662325889 has 8 divisors (see below), whose sum is σ = 1903278528. Its totient is φ = 1422242640.

The previous prime is 1662325883. The next prime is 1662325913. The reversal of 1662325889 is 9885232661.

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

It is a de Polignac number, because none of the positive numbers 2^k-1662325889 is a prime.

It is a super-2 number, since 2×1662325889² = 5526654722479280642, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1662325883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213242 + ... + 220899.

It is an arithmetic number, because the mean of its divisors is an integer number (237909816).

Almost surely, 2^1662325889 is an apocalyptic number.

It is an amenable number.

1662325889 is a deficient number, since it is larger than the sum of its proper divisors (240952639).

1662325889 is an equidigital number, since it uses as much as digits as its factorization.

1662325889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434695.

The product of its digits is 1244160, while the sum is 50.

The square root of 1662325889 is about 40771.6309337755. The cubic root of 1662325889 is about 1184.6008943971.

The spelling of 1662325889 in words is "one billion, six hundred sixty-two million, three hundred twenty-five thousand, eight hundred eighty-nine".