215162601210 has 40 divisors (see below), whose sum is σ = 578548329876. Its totient is φ = 57376693440.

The previous prime is 215162601133. The next prime is 215162601211. The reversal of 215162601210 is 12106261512.

215162601210 is a `hidden beast` number, since 2 + 1 + 51 + 6 + 2 + 601 + 2 + 1 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 199361357001 + 15801244209 = 446499^2 + 125703^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (215162601211) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 132815611 + ... + 132817230.

Almost surely, 2^215162601210 is an apocalyptic number.

215162601210 is an abundant number, since it is smaller than the sum of its proper divisors (363385728666).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

215162601210 is a wasteful number, since it uses less digits than its factorization.

215162601210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265632860 (or 265632851 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

Adding to 215162601210 its reverse (12106261512), we get a palindrome (227268862722).

The spelling of 215162601210 in words is "two hundred fifteen billion, one hundred sixty-two million, six hundred one thousand, two hundred ten".