1223465663205 has 48 divisors (see below), whose sum is σ = 2194004292480. Its totient is φ = 629955978624.

The previous prime is 1223465663137. The next prime is 1223465663227. The reversal of 1223465663205 is 5023665643221.

1223465663205 is a `hidden beast` number, since 1 + 2 + 2 + 3 + 4 + 6 + 5 + 6 + 632 + 0 + 5 = 666.

It is not a de Polignac number, because 1223465663205 - 2⁸ = 1223465662949 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16383562 + ... + 16458068.

It is an arithmetic number, because the mean of its divisors is an integer number (45708422760).

Almost surely, 2^{1223465663205} is an apocalyptic number.

1223465663205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1223465663205 is a deficient number, since it is larger than the sum of its proper divisors (970538629275).

1223465663205 is a wasteful number, since it uses less digits than its factorization.

1223465663205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87130 (or 87127 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 45.

The spelling of 1223465663205 in words is "one trillion, two hundred twenty-three billion, four hundred sixty-five million, six hundred sixty-three thousand, two hundred five".