215264247200 has 36 divisors (see below), whose sum is σ = 525513845430. Its totient is φ = 86105698560.

The previous prime is 215264247181. The next prime is 215264247227. The reversal of 215264247200 is 2742462512.

It can be written as a sum of positive squares in 3 ways, for example, as 176134659856 + 39129587344 = 419684^2 + 197812^2 .

It is a super-2 number, since 2×215264247200² (a number of 23 digits) contains 22 as substring.

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, 134539355 + ... + 134540954.

Almost surely, 2^215264247200 is an apocalyptic number.

215264247200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215264247200 is an abundant number, since it is smaller than the sum of its proper divisors (310249598230).

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

215264247200 is a wasteful number, since it uses less digits than its factorization.

215264247200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269080329 (or 269080316 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 35.

The spelling of 215264247200 in words is "two hundred fifteen billion, two hundred sixty-four million, two hundred forty-seven thousand, two hundred".