3261630555445 has 8 divisors (see below), whose sum is σ = 3949864526520. Its totient is φ = 2585365871040.

The previous prime is 3261630555397. The next prime is 3261630555467. The reversal of 3261630555445 is 5445550361623.

It can be written as a sum of positive squares in 4 ways, for example, as 1087179497041 + 2174451058404 = 1042679^2 + 1474602^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3261630555445 - 2²¹ = 3261628458293 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2992321066 + ... + 2992322155.

It is an arithmetic number, because the mean of its divisors is an integer number (493733065815).

Almost surely, 2^{3261630555445} is an apocalyptic number.

It is an amenable number.

3261630555445 is a deficient number, since it is larger than the sum of its proper divisors (688233971075).

3261630555445 is a wasteful number, since it uses less digits than its factorization.

3261630555445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5984643335.

The product of its (nonzero) digits is 6480000, while the sum is 49.

The spelling of 3261630555445 in words is "three trillion, two hundred sixty-one billion, six hundred thirty million, five hundred fifty-five thousand, four hundred forty-five".