215655203132 has 12 divisors (see below), whose sum is σ = 377617446360. Its totient is φ = 107764504176.

The previous prime is 215655203089. The next prime is 215655203161. The reversal of 215655203132 is 231302556512.

It is a junction number, because it is equal to n+sod(n) for n = 215655203092 and 215655203101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15766658 + ... + 15780329.

It is an arithmetic number, because the mean of its divisors is an integer number (31468120530).

Almost surely, 2^215655203132 is an apocalyptic number.

It is an amenable number.

215655203132 is a deficient number, since it is larger than the sum of its proper divisors (161962243228).

215655203132 is a wasteful number, since it uses less digits than its factorization.

215655203132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31548700 (or 31548698 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 35.

Adding to 215655203132 its reverse (231302556512), we get a palindrome (446957759644).

The spelling of 215655203132 in words is "two hundred fifteen billion, six hundred fifty-five million, two hundred three thousand, one hundred thirty-two".