87064066646 has 8 divisors (see below), whose sum is σ = 136274191344. Its totient is φ = 41639336200.

The previous prime is 87064066637. The next prime is 87064066721. The reversal of 87064066646 is 64666046078.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 946348505 + ... + 946348596.

It is an arithmetic number, because the mean of its divisors is an integer number (17034273918).

Almost surely, 2^87064066646 is an apocalyptic number.

87064066646 is a deficient number, since it is larger than the sum of its proper divisors (49210124698).

87064066646 is a wasteful number, since it uses less digits than its factorization.

87064066646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1892697126.

The product of its (nonzero) digits is 6967296, while the sum is 53.

The spelling of 87064066646 in words is "eighty-seven billion, sixty-four million, sixty-six thousand, six hundred forty-six".