1601870688 has 192 divisors, whose sum is σ = 5262243840. Its totient is φ = 469670400.

The previous prime is 1601870681. The next prime is 1601870693. The reversal of 1601870688 is 8860781061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1601870681) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 291906 + ... + 297342.

It is an arithmetic number, because the mean of its divisors is an integer number (27407520).

Almost surely, 2^1601870688 is an apocalyptic number.

1601870688 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 1601870688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2631121920).

1601870688 is an abundant number, since it is smaller than the sum of its proper divisors (3660373152).

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

1601870688 is a wasteful number, since it uses less digits than its factorization.

1601870688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5498 (or 5484 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 45.

The square root of 1601870688 is about 40023.3767690833. The cubic root of 1601870688 is about 1170.0627448270.

The spelling of 1601870688 in words is "one billion, six hundred one million, eight hundred seventy thousand, six hundred eighty-eight".