215483972355 has 20 divisors (see below), whose sum is σ = 386274973392. Its totient is φ = 114924785040.

The previous prime is 215483972351. The next prime is 215483972369. The reversal of 215483972355 is 553279384512.

215483972355 is a `hidden beast` number, since 2 + 1 + 5 + 483 + 97 + 23 + 55 = 666.

215483972355 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 215483972355 - 2² = 215483972351 is a prime.

It is not an unprimeable number, because it can be changed into a prime (215483972351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 266029191 + ... + 266030000.

Almost surely, 2^215483972355 is an apocalyptic number.

215483972355 is a deficient number, since it is larger than the sum of its proper divisors (170791001037).

215483972355 is an equidigital number, since it uses as much as digits as its factorization.

215483972355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532059208 (or 532059199 counting only the distinct ones).

The product of its digits is 9072000, while the sum is 54.

The spelling of 215483972355 in words is "two hundred fifteen billion, four hundred eighty-three million, nine hundred seventy-two thousand, three hundred fifty-five".