6366218992401 has 64 divisors (see below), whose sum is σ = 8958132997632. Its totient is φ = 4017807360000.

The previous prime is 6366218992313. The next prime is 6366218992417. The reversal of 6366218992401 is 1042998126636.

It is not a de Polignac number, because 6366218992401 - 2⁹ = 6366218991889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6366218992421) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 153304521 + ... + 153346041.

It is an arithmetic number, because the mean of its divisors is an integer number (139970828088).

Almost surely, 2^{6366218992401} is an apocalyptic number.

It is an amenable number.

6366218992401 is a deficient number, since it is larger than the sum of its proper divisors (2591914005231).

6366218992401 is a wasteful number, since it uses less digits than its factorization.

6366218992401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41914.

The product of its (nonzero) digits is 6718464, while the sum is 57.

The spelling of 6366218992401 in words is "six trillion, three hundred sixty-six billion, two hundred eighteen million, nine hundred ninety-two thousand, four hundred one".