8541251664 has 80 divisors (see below), whose sum is σ = 25117392384. Its totient is φ = 2475721600.

The previous prime is 8541251633. The next prime is 8541251743. The reversal of 8541251664 is 4661521458.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 339522 + ... + 363809.

Almost surely, 2^8541251664 is an apocalyptic number.

It is an amenable number.

8541251664 is an abundant number, since it is smaller than the sum of its proper divisors (16576140720).

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

8541251664 is a wasteful number, since it uses less digits than its factorization.

8541251664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703376 (or 703370 counting only the distinct ones).

The product of its digits is 230400, while the sum is 42.

The square root of 8541251664 is about 92418.8923543233. The cubic root of 8541251664 is about 2044.1236963398.

The spelling of 8541251664 in words is "eight billion, five hundred forty-one million, two hundred fifty-one thousand, six hundred sixty-four".