5001601605 has 64 divisors (see below), whose sum is σ = 10744731648. Its totient is φ = 1918690560.

The previous prime is 5001601601. The next prime is 5001601607. The reversal of 5001601605 is 5061061005.

5001601605 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5001601605 - 2² = 5001601601 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5001601601) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 151539 + ... + 181568.

It is an arithmetic number, because the mean of its divisors is an integer number (167886432).

Almost surely, 2^5001601605 is an apocalyptic number.

5001601605 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5001601605 is an abundant number, since it is smaller than the sum of its proper divisors (5743130043).

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

5001601605 is a wasteful number, since it uses less digits than its factorization.

5001601605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333146.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 5001601605 is about 70722.0022694494. The cubic root of 5001601605 is about 1710.1585075871.

It can be divided in two parts, 5001 and 601605, that added together give a palindrome (606606).

The spelling of 5001601605 in words is "five billion, one million, six hundred one thousand, six hundred five".