66962733580 has 48 divisors (see below), whose sum is σ = 146514686976. Its totient is φ = 25678779840.

The previous prime is 66962733553. The next prime is 66962733587. The reversal of 66962733580 is 8533726966.

66962733580 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (66962733587) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 438354 + ... + 571033.

It is an arithmetic number, because the mean of its divisors is an integer number (3052389312).

Almost surely, 2^66962733580 is an apocalyptic number.

It is an amenable number.

66962733580 is an abundant number, since it is smaller than the sum of its proper divisors (79551953396).

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

66962733580 is a wasteful number, since it uses less digits than its factorization.

66962733580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009534 (or 1009532 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 55.

The spelling of 66962733580 in words is "sixty-six billion, nine hundred sixty-two million, seven hundred thirty-three thousand, five hundred eighty".