215063225456 has 20 divisors (see below), whose sum is σ = 441195882192. Its totient is φ = 101206223616.

The previous prime is 215063225449. The next prime is 215063225477. The reversal of 215063225456 is 654522360512.

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, 395336540 + ... + 395337083.

Almost surely, 2^215063225456 is an apocalyptic number.

It is an amenable number.

215063225456 is an abundant number, since it is smaller than the sum of its proper divisors (226132656736).

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

215063225456 is a wasteful number, since it uses less digits than its factorization.

215063225456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790673648 (or 790673642 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 41.

Adding to 215063225456 its reverse (654522360512), we get a palindrome (869585585968).

The spelling of 215063225456 in words is "two hundred fifteen billion, sixty-three million, two hundred twenty-five thousand, four hundred fifty-six".