66213410896 has 20 divisors (see below), whose sum is σ = 133866244512. Its totient is φ = 31667283296.

The previous prime is 66213410869. The next prime is 66213410929. The reversal of 66213410896 is 69801431266.

It is a Harshad number since it is a multiple of its sum of digits (46).

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, 89963506 + ... + 89964241.

Almost surely, 2^66213410896 is an apocalyptic number.

It is an amenable number.

66213410896 is an abundant number, since it is smaller than the sum of its proper divisors (67652833616).

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

66213410896 is a wasteful number, since it uses less digits than its factorization.

66213410896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179927778 (or 179927772 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 46.

The spelling of 66213410896 in words is "sixty-six billion, two hundred thirteen million, four hundred ten thousand, eight hundred ninety-six".