1501604568 has 80 divisors (see below), whose sum is σ = 4243310280. Its totient is φ = 496081152.

The previous prime is 1501604557. The next prime is 1501604569. The reversal of 1501604568 is 8654061051.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1501604569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 62971 + ... + 83477.

Almost surely, 2^1501604568 is an apocalyptic number.

1501604568 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1501604568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2121655140).

1501604568 is an abundant number, since it is smaller than the sum of its proper divisors (2741705712).

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

1501604568 is a wasteful number, since it uses less digits than its factorization.

1501604568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20638 (or 20625 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 1501604568 is about 38750.5428091014. The cubic root of 1501604568 is about 1145.1222686184.

The spelling of 1501604568 in words is "one billion, five hundred one million, six hundred four thousand, five hundred sixty-eight".