3255211355661 has 16 divisors (see below), whose sum is σ = 5032210792320. Its totient is φ = 2075786951040.

The previous prime is 3255211355659. The next prime is 3255211355743. The reversal of 3255211355661 is 1665531125523.

3255211355661 is a `hidden beast` number, since 3 + 2 + 5 + 5 + 21 + 13 + 556 + 61 = 666.

It is not a de Polignac number, because 3255211355661 - 2¹ = 3255211355659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3255211355611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2620942500 + ... + 2620943741.

It is an arithmetic number, because the mean of its divisors is an integer number (314513174520).

Almost surely, 2^{3255211355661} is an apocalyptic number.

It is an amenable number.

3255211355661 is a deficient number, since it is larger than the sum of its proper divisors (1776999436659).

3255211355661 is a wasteful number, since it uses less digits than its factorization.

3255211355661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5241886273 (or 5241886267 counting only the distinct ones).

The product of its digits is 810000, while the sum is 45.

The spelling of 3255211355661 in words is "three trillion, two hundred fifty-five billion, two hundred eleven million, three hundred fifty-five thousand, six hundred sixty-one".