1601068656 has 160 divisors (see below), whose sum is σ = 4819691520. Its totient is φ = 453196800.

The previous prime is 1601068643. The next prime is 1601068657. The reversal of 1601068656 is 6568601061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1601068657) 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 31 ways as a sum of consecutive naturals, for example, 472986 + ... + 476358.

It is an arithmetic number, because the mean of its divisors is an integer number (30123072).

Almost surely, 2^1601068656 is an apocalyptic number.

1601068656 is a gapful number since it is divisible by the number (16) 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 1601068656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2409845760).

1601068656 is an abundant number, since it is smaller than the sum of its proper divisors (3218622864).

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

1601068656 is a wasteful number, since it uses less digits than its factorization.

1601068656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3455 (or 3449 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 1601068656 is about 40013.3559702257. The cubic root of 1601068656 is about 1169.8674347576.

It can be divided in two parts, 16010 and 68656, that added together give a triangular number (84666 = T₄₁₁).

The spelling of 1601068656 in words is "one billion, six hundred one million, sixty-eight thousand, six hundred fifty-six".