1216652634145 has 64 divisors (see below), whose sum is σ = 1665432115200. Its totient is φ = 846459694080.

The previous prime is 1216652634121. The next prime is 1216652634149. The reversal of 1216652634145 is 5414362566121.

It is not a de Polignac number, because 1216652634145 - 2¹³ = 1216652625953 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1216652634095 and 1216652634104.

It is not an unprimeable number, because it can be changed into a prime (1216652634149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 49709971 + ... + 49734439.

It is an arithmetic number, because the mean of its divisors is an integer number (26022376800).

Almost surely, 2^{1216652634145} is an apocalyptic number.

It is an amenable number.

1216652634145 is a deficient number, since it is larger than the sum of its proper divisors (448779481055).

1216652634145 is a wasteful number, since it uses less digits than its factorization.

1216652634145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25010.

The product of its digits is 1036800, while the sum is 46.

The spelling of 1216652634145 in words is "one trillion, two hundred sixteen billion, six hundred fifty-two million, six hundred thirty-four thousand, one hundred forty-five".