11880319942655 has 32 divisors (see below), whose sum is σ = 14543689043520. Its totient is φ = 9315240053760.

The previous prime is 11880319942649. The next prime is 11880319942657. The reversal of 11880319942655 is 55624991308811.

It is a Cunningham number, because it is equal to 3446784²-1.

It is not a de Polignac number, because 11880319942655 - 2¹⁰ = 11880319941631 is a prime.

It is a super-2 number, since 2×11880319942655² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11880319942657) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16889237 + ... + 17578593.

It is an arithmetic number, because the mean of its divisors is an integer number (454490282610).

Almost surely, 2^{11880319942655} is an apocalyptic number.

11880319942655 is a deficient number, since it is larger than the sum of its proper divisors (2663369100865).

11880319942655 is a wasteful number, since it uses less digits than its factorization.

11880319942655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689819.

The product of its (nonzero) digits is 18662400, while the sum is 62.

The spelling of 11880319942655 in words is "eleven trillion, eight hundred eighty billion, three hundred nineteen million, nine hundred forty-two thousand, six hundred fifty-five".