264401621163211 has 16 divisors (see below), whose sum is σ = 309544473143808. Its totient is φ = 221101606843200.

The previous prime is 264401621163209. The next prime is 264401621163217. The reversal of 264401621163211 is 112361126104462.

It is a cyclic number.

It is not a de Polignac number, because 264401621163211 - 2¹ = 264401621163209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (264401621163217) 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, 86574426 + ... + 89576416.

It is an arithmetic number, because the mean of its divisors is an integer number (19346529571488).

Almost surely, 2^{264401621163211} is an apocalyptic number.

264401621163211 is a deficient number, since it is larger than the sum of its proper divisors (45142851980597).

264401621163211 is a wasteful number, since it uses less digits than its factorization.

264401621163211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3308922.

The product of its (nonzero) digits is 82944, while the sum is 40.

Adding to 264401621163211 its reverse (112361126104462), we get a palindrome (376762747267673).

The spelling of 264401621163211 in words is "two hundred sixty-four trillion, four hundred one billion, six hundred twenty-one million, one hundred sixty-three thousand, two hundred eleven".