1601498556 has 144 divisors (see below), whose sum is σ = 4927104000. Its totient is φ = 437599008.

The previous prime is 1601498551. The next prime is 1601498557. The reversal of 1601498556 is 6558941061.

1601498556 is a `hidden beast` number, since 1 + 6 + 0 + 1 + 4 + 98 + 556 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1601498551) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 281185 + ... + 286823.

It is an arithmetic number, because the mean of its divisors is an integer number (34216000).

Almost surely, 2^1601498556 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 1601498556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2463552000).

1601498556 is an abundant number, since it is smaller than the sum of its proper divisors (3325605444).

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

1601498556 is a wasteful number, since it uses less digits than its factorization.

1601498556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5693 (or 5674 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The square root of 1601498556 is about 40018.7275659784. The cubic root of 1601498556 is about 1169.9721317053.

The spelling of 1601498556 in words is "one billion, six hundred one million, four hundred ninety-eight thousand, five hundred fifty-six".