22001400163465 has 16 divisors (see below), whose sum is σ = 26967927974400. Its totient is φ = 17223746887360.

The previous prime is 22001400163459. The next prime is 22001400163499. The reversal of 22001400163465 is 56436100410022.

It is not a de Polignac number, because 22001400163465 - 2¹¹ = 22001400161417 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22001400163465.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6421165 + ... + 9232234.

It is an arithmetic number, because the mean of its divisors is an integer number (1685495498400).

Almost surely, 2^{22001400163465} is an apocalyptic number.

It is an amenable number.

22001400163465 is a deficient number, since it is larger than the sum of its proper divisors (4966527810935).

22001400163465 is a wasteful number, since it uses less digits than its factorization.

22001400163465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15659432.

The product of its (nonzero) digits is 34560, while the sum is 34.

Adding to 22001400163465 its reverse (56436100410022), we get a palindrome (78437500573487).

The spelling of 22001400163465 in words is "twenty-two trillion, one billion, four hundred million, one hundred sixty-three thousand, four hundred sixty-five".