66026385936 has 675 divisors, whose sum is σ = 237830890479. Its totient is φ = 17094768768.

The previous prime is 66026385907. The next prime is 66026385961. The reversal of 66026385936 is 63958362066.

The square root of 66026385936 is 256956.

It is a perfect power (a square), and thus also a powerful number.

It is an unprimeable number.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 2870712421 + ... + 2870712443.

Almost surely, 2^66026385936 is an apocalyptic number.

66026385936 is the 256956-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66026385936

66026385936 is an abundant number, since it is smaller than the sum of its proper divisors (171804504543).

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

66026385936 is a wasteful number, since it uses less digits than its factorization.

66026385936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126 (or 54 counting only the distinct ones).

The product of its (nonzero) digits is 8398080, while the sum is 54.

The spelling of 66026385936 in words is "sixty-six billion, twenty-six million, three hundred eighty-five thousand, nine hundred thirty-six".