3221575612605 has 96 divisors (see below), whose sum is σ = 6589378418688. Its totient is φ = 1424839680000.

The previous prime is 3221575612603. The next prime is 3221575612709. The reversal of 3221575612605 is 5062165751223.

It is a happy number.

3221575612605 is a `hidden beast` number, since 3 + 2 + 2 + 1 + 575 + 6 + 12 + 60 + 5 = 666.

3221575612605 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 3221575612605 - 2¹ = 3221575612603 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221575612601) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 39028537 + ... + 39110993.

It is an arithmetic number, because the mean of its divisors is an integer number (68639358528).

Almost surely, 2^{3221575612605} is an apocalyptic number.

3221575612605 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3221575612605 is an abundant number, since it is smaller than the sum of its proper divisors (3367802806083).

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

3221575612605 is a wasteful number, since it uses less digits than its factorization.

3221575612605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86507 (or 86504 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 45.

The spelling of 3221575612605 in words is "three trillion, two hundred twenty-one billion, five hundred seventy-five million, six hundred twelve thousand, six hundred five".