66265076020 has 96 divisors (see below), whose sum is σ = 172089348480. Its totient is φ = 21072130560.

The previous prime is 66265076011. The next prime is 66265076021. The reversal of 66265076020 is 2067056266.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66265076021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 555387 + ... + 664066.

It is an arithmetic number, because the mean of its divisors is an integer number (1792597380).

Almost surely, 2^66265076020 is an apocalyptic number.

It is an amenable number.

66265076020 is an abundant number, since it is smaller than the sum of its proper divisors (105824272460).

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

66265076020 is a wasteful number, since it uses less digits than its factorization.

66265076020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1219505 (or 1219503 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 40.

The spelling of 66265076020 in words is "sixty-six billion, two hundred sixty-five million, seventy-six thousand, twenty".