3226661216401 has 16 divisors (see below), whose sum is σ = 3730886006400. Its totient is φ = 2733285379968.

The previous prime is 3226661216357. The next prime is 3226661216453. The reversal of 3226661216401 is 1046121666223.

It is a cyclic number.

It is not a de Polignac number, because 3226661216401 - 2⁹ = 3226661215889 is a prime.

It is a super-2 number, since 2×3226661216401² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3226661213401) 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, 12235 + ... + 2540368.

It is an arithmetic number, because the mean of its divisors is an integer number (233180375400).

Almost surely, 2^{3226661216401} is an apocalyptic number.

It is an amenable number.

3226661216401 is a deficient number, since it is larger than the sum of its proper divisors (504224789999).

3226661216401 is a wasteful number, since it uses less digits than its factorization.

3226661216401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2554728.

The product of its (nonzero) digits is 124416, while the sum is 40.

The spelling of 3226661216401 in words is "three trillion, two hundred twenty-six billion, six hundred sixty-one million, two hundred sixteen thousand, four hundred one".