3261006065551 has 12 divisors (see below), whose sum is σ = 3652912329480. Its totient is φ = 2906360839200.

The previous prime is 3261006065531. The next prime is 3261006065561. The reversal of 3261006065551 is 1555606001623.

It is not a de Polignac number, because 3261006065551 - 2³⁹ = 2711250251663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3261006065531) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 332682925 + ... + 332692726.

It is an arithmetic number, because the mean of its divisors is an integer number (304409360790).

Almost surely, 2^{3261006065551} is an apocalyptic number.

3261006065551 is a deficient number, since it is larger than the sum of its proper divisors (391906263929).

3261006065551 is a wasteful number, since it uses less digits than its factorization.

3261006065551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665375706 (or 665375693 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 40.

The spelling of 3261006065551 in words is "three trillion, two hundred sixty-one billion, six million, sixty-five thousand, five hundred fifty-one".