3006995218561 has 8 divisors (see below), whose sum is σ = 3016547637480. Its totient is φ = 2997443219328.

The previous prime is 3006995218499. The next prime is 3006995218583. The reversal of 3006995218561 is 1658125996003.

It can be written as a sum of positive squares in 4 ways, for example, as 351790148161 + 2655205070400 = 593119^2 + 1629480^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 3006995218561 - 2²¹ = 3006993121409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3006995218861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20903895 + ... + 21047251.

It is an arithmetic number, because the mean of its divisors is an integer number (377068454685).

Almost surely, 2^{3006995218561} is an apocalyptic number.

It is an amenable number.

3006995218561 is a deficient number, since it is larger than the sum of its proper divisors (9552418919).

3006995218561 is a wasteful number, since it uses less digits than its factorization.

3006995218561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209843.

The product of its (nonzero) digits is 3499200, while the sum is 55.

The spelling of 3006995218561 in words is "three trillion, six billion, nine hundred ninety-five million, two hundred eighteen thousand, five hundred sixty-one".