215311145150 has 24 divisors (see below), whose sum is σ = 404978499360. Its totient is φ = 85156765760.

The previous prime is 215311145117. The next prime is 215311145167. The reversal of 215311145150 is 51541113512.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24187814 + ... + 24196713.

It is an arithmetic number, because the mean of its divisors is an integer number (16874104140).

Almost surely, 2^215311145150 is an apocalyptic number.

215311145150 is a deficient number, since it is larger than the sum of its proper divisors (189667354210).

215311145150 is a wasteful number, since it uses less digits than its factorization.

215311145150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48384628 (or 48384623 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 29.

Adding to 215311145150 its reverse (51541113512), we get a palindrome (266852258662).

The spelling of 215311145150 in words is "two hundred fifteen billion, three hundred eleven million, one hundred forty-five thousand, one hundred fifty".