1604911133672 has 128 divisors (see below), whose sum is σ = 3846025774080. Its totient is φ = 609597888000.

The previous prime is 1604911133669. The next prime is 1604911133759. The reversal of 1604911133672 is 2763311194061.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36018047 + ... + 36062577.

It is an arithmetic number, because the mean of its divisors is an integer number (30047076360).

Almost surely, 2^{1604911133672} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1604911133672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1923012887040).

1604911133672 is an abundant number, since it is smaller than the sum of its proper divisors (2241114640408).

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

1604911133672 is a wasteful number, since it uses less digits than its factorization.

1604911133672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46023 (or 46019 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 44.

The spelling of 1604911133672 in words is "one trillion, six hundred four billion, nine hundred eleven million, one hundred thirty-three thousand, six hundred seventy-two".