3721606064 has 20 divisors (see below), whose sum is σ = 7866122280. Its totient is φ = 1691639040.

The previous prime is 3721606061. The next prime is 3721606073. The reversal of 3721606064 is 4606061273.

It is not an unprimeable number, because it can be changed into a prime (3721606061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10572569 + ... + 10572920.

It is an arithmetic number, because the mean of its divisors is an integer number (393306114).

Almost surely, 2^3721606064 is an apocalyptic number.

It is an amenable number.

3721606064 is an abundant number, since it is smaller than the sum of its proper divisors (4144516216).

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

3721606064 is a wasteful number, since it uses less digits than its factorization.

3721606064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21145508 (or 21145502 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 3721606064 is about 61004.9675354393. The cubic root of 3721606064 is about 1549.6851339615.

The spelling of 3721606064 in words is "three billion, seven hundred twenty-one million, six hundred six thousand, sixty-four".