1606015656 has 96 divisors (see below), whose sum is σ = 4984911360. Its totient is φ = 457577856.

The previous prime is 1606015651. The next prime is 1606015681. The reversal of 1606015656 is 6565106061.

It is a super-2 number, since 2×1606015656² = 5158572574634220672, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1606015656.

It is not an unprimeable number, because it can be changed into a prime (1606015651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 183721 + ... + 192263.

It is an arithmetic number, because the mean of its divisors is an integer number (51926160).

Almost surely, 2^1606015656 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 1606015656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2492455680).

1606015656 is an abundant number, since it is smaller than the sum of its proper divisors (3378895704).

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

1606015656 is a wasteful number, since it uses less digits than its factorization.

1606015656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8935 (or 8928 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 1606015656 is about 40075.1251526430. The cubic root of 1606015656 is about 1171.0710857896.

The spelling of 1606015656 in words is "one billion, six hundred six million, fifteen thousand, six hundred fifty-six".