11663214151251 has 64 divisors (see below), whose sum is σ = 17601920985600. Its totient is φ = 6819185995776.

The previous prime is 11663214151247. The next prime is 11663214151289. The reversal of 11663214151251 is 15215141236611.

It is not a de Polignac number, because 11663214151251 - 2² = 11663214151247 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (11663214152251) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 71679555 + ... + 71842083.

It is an arithmetic number, because the mean of its divisors is an integer number (275030015400).

Almost surely, 2^{11663214151251} is an apocalyptic number.

11663214151251 is a deficient number, since it is larger than the sum of its proper divisors (5938706834349).

11663214151251 is a wasteful number, since it uses less digits than its factorization.

11663214151251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163588.

The product of its digits is 43200, while the sum is 39.

Adding to 11663214151251 its reverse (15215141236611), we get a palindrome (26878355387862).

The spelling of 11663214151251 in words is "eleven trillion, six hundred sixty-three billion, two hundred fourteen million, one hundred fifty-one thousand, two hundred fifty-one".