8218064553551 has 8 divisors (see below), whose sum is σ = 8285186855424. Its totient is φ = 8150979957120.

The previous prime is 8218064553511. The next prime is 8218064553557. The reversal of 8218064553551 is 1553554608128.

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

It is a cyclic number.

It is not a de Polignac number, because 8218064553551 - 2⁶ = 8218064553487 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8218064553493 and 8218064553502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8218064553557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8988590 + ... + 9860571.

It is an arithmetic number, because the mean of its divisors is an integer number (1035648356928).

Almost surely, 2^{8218064553551} is an apocalyptic number.

8218064553551 is a deficient number, since it is larger than the sum of its proper divisors (67122301873).

8218064553551 is a wasteful number, since it uses less digits than its factorization.

8218064553551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18852721.

The product of its (nonzero) digits is 5760000, while the sum is 53.

The spelling of 8218064553551 in words is "eight trillion, two hundred eighteen billion, sixty-four million, five hundred fifty-three thousand, five hundred fifty-one".