215250466534 has 4 divisors (see below), whose sum is σ = 322875699804. Its totient is φ = 107625233266.

The previous prime is 215250466493. The next prime is 215250466559. The reversal of 215250466534 is 435664052512.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53812616632 + ... + 53812616635.

It is an arithmetic number, because the mean of its divisors is an integer number (80718924951).

Almost surely, 2^215250466534 is an apocalyptic number.

215250466534 is a deficient number, since it is larger than the sum of its proper divisors (107625233270).

215250466534 is a wasteful number, since it uses less digits than its factorization.

215250466534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107625233269.

The product of its (nonzero) digits is 864000, while the sum is 43.

The spelling of 215250466534 in words is "two hundred fifteen billion, two hundred fifty million, four hundred sixty-six thousand, five hundred thirty-four".