2178480656522 has 16 divisors (see below), whose sum is σ = 3337745361120. Its totient is φ = 1066061528208.

The previous prime is 2178480656519. The next prime is 2178480656543. The reversal of 2178480656522 is 2256560848712.

It is a super-2 number, since 2×2178480656522² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40637753 + ... + 40691324.

It is an arithmetic number, because the mean of its divisors is an integer number (208609085070).

Almost surely, 2^{2178480656522} is an apocalyptic number.

2178480656522 is a deficient number, since it is larger than the sum of its proper divisors (1159264704598).

2178480656522 is a wasteful number, since it uses less digits than its factorization.

2178480656522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81329365.

The product of its (nonzero) digits is 12902400, while the sum is 56.

The spelling of 2178480656522 in words is "two trillion, one hundred seventy-eight billion, four hundred eighty million, six hundred fifty-six thousand, five hundred twenty-two".