3126413330661 has 8 divisors (see below), whose sum is σ = 4176552167424. Its totient is φ = 2080275023840.

The previous prime is 3126413330659. The next prime is 3126413330731. The reversal of 3126413330661 is 1660333146213.

It is a happy number.

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 3126413330661 - 2¹ = 3126413330659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3126413331661) 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, 1000130661 + ... + 1000133786.

It is an arithmetic number, because the mean of its divisors is an integer number (522069020928).

Almost surely, 2^{3126413330661} is an apocalyptic number.

It is an amenable number.

3126413330661 is a deficient number, since it is larger than the sum of its proper divisors (1050138836763).

3126413330661 is a wasteful number, since it uses less digits than its factorization.

3126413330661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2000264971.

The product of its (nonzero) digits is 139968, while the sum is 39.

Adding to 3126413330661 its reverse (1660333146213), we get a palindrome (4786746476874).

The spelling of 3126413330661 in words is "three trillion, one hundred twenty-six billion, four hundred thirteen million, three hundred thirty thousand, six hundred sixty-one".