1601601624 has 96 divisors (see below), whose sum is σ = 4963813920. Its totient is φ = 457003008.

The previous prime is 1601601623. The next prime is 1601601667. The reversal of 1601601624 is 4261061061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1601601623) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 508984 + ... + 512120.

It is an arithmetic number, because the mean of its divisors is an integer number (51706395).

Almost surely, 2^1601601624 is an apocalyptic number.

1601601624 is a gapful number since it is divisible by the number (14) 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 1601601624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2481906960).

1601601624 is an abundant number, since it is smaller than the sum of its proper divisors (3362212296).

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

1601601624 is a wasteful number, since it uses less digits than its factorization.

1601601624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4169 (or 4162 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 1601601624 is about 40020.0152923509. The cubic root of 1601601624 is about 1169.9972298861.

Adding to 1601601624 its reverse (4261061061), we get a palindrome (5862662685).

The spelling of 1601601624 in words is "one billion, six hundred one million, six hundred one thousand, six hundred twenty-four".