66616237425300 has 144 divisors (see below), whose sum is σ = 197049891749760. Its totient is φ = 17369667560960.

The previous prime is 66616237425299. The next prime is 66616237425307. The reversal of 66616237425300 is 352473261666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66616237425307) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2490960 + ... + 11808359.

It is an arithmetic number, because the mean of its divisors is an integer number (1368402026040).

Almost surely, 2^{66616237425300} is an apocalyptic number.

66616237425300 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

66616237425300 is an abundant number, since it is smaller than the sum of its proper divisors (130433654324460).

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

66616237425300 is a wasteful number, since it uses less digits than its factorization.

66616237425300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14299682 (or 14299675 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 51.

The spelling of 66616237425300 in words is "sixty-six trillion, six hundred sixteen billion, two hundred thirty-seven million, four hundred twenty-five thousand, three hundred".