1216651760007 has 32 divisors (see below), whose sum is σ = 1699365298176. Its totient is φ = 772799570400.

The previous prime is 1216651759991. The next prime is 1216651760057. The reversal of 1216651760007 is 7000671566121.

It is not a de Polignac number, because 1216651760007 - 2⁴ = 1216651759991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1216651760057) 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 31 ways as a sum of consecutive naturals, for example, 31804582 + ... + 31842812.

It is an arithmetic number, because the mean of its divisors is an integer number (53105165568).

Almost surely, 2^{1216651760007} is an apocalyptic number.

1216651760007 is a deficient number, since it is larger than the sum of its proper divisors (482713538169).

1216651760007 is a wasteful number, since it uses less digits than its factorization.

1216651760007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40051.

The product of its (nonzero) digits is 105840, while the sum is 42.

The spelling of 1216651760007 in words is "one trillion, two hundred sixteen billion, six hundred fifty-one million, seven hundred sixty thousand, seven".