66734124801140 has 24 divisors (see below), whose sum is σ = 140185333660680. Its totient is φ = 26685331524608.

The previous prime is 66734124801139. The next prime is 66734124801173. The reversal of 66734124801140 is 4110842143766.

It can be written as a sum of positive squares in 4 ways, for example, as 16352464017124 + 50381660784016 = 4043818^2 + 7098004^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 519833957 + ... + 519962316.

It is an arithmetic number, because the mean of its divisors is an integer number (5841055569195).

Almost surely, 2^{66734124801140} is an apocalyptic number.

It is an amenable number.

66734124801140 is an abundant number, since it is smaller than the sum of its proper divisors (73451208859540).

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

66734124801140 is a wasteful number, since it uses less digits than its factorization.

66734124801140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039799491 (or 1039799489 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 47.

The spelling of 66734124801140 in words is "sixty-six trillion, seven hundred thirty-four billion, one hundred twenty-four million, eight hundred one thousand, one hundred forty".