215153445050 has 12 divisors (see below), whose sum is σ = 400185407886. Its totient is φ = 86061378000.

The previous prime is 215153445049. The next prime is 215153445061. The reversal of 215153445050 is 50544351512.

215153445050 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 100241258881 + 114912186169 = 316609^2 + 338987^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 215153445050.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2151534401 + ... + 2151534500.

Almost surely, 2^215153445050 is an apocalyptic number.

215153445050 is a deficient number, since it is larger than the sum of its proper divisors (185031962836).

215153445050 is a wasteful number, since it uses less digits than its factorization.

215153445050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4303068913 (or 4303068908 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 35.

Adding to 215153445050 its reverse (50544351512), we get a palindrome (265697796562).

The spelling of 215153445050 in words is "two hundred fifteen billion, one hundred fifty-three million, four hundred forty-five thousand, fifty".