66781410701337 has 16 divisors (see below), whose sum is σ = 98958873400000. Its totient is φ = 44510387905152.

The previous prime is 66781410701323. The next prime is 66781410701347. The reversal of 66781410701337 is 73310701418766.

It is a happy number.

66781410701337 is a `hidden beast` number, since 66 + 78 + 1 + 410 + 70 + 1 + 3 + 37 = 666.

It is not a de Polignac number, because 66781410701337 - 2⁷ = 66781410701209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66781410701347) 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, 293010712 + ... + 293238537.

It is an arithmetic number, because the mean of its divisors is an integer number (6184929587500).

Almost surely, 2^{66781410701337} is an apocalyptic number.

It is an amenable number.

66781410701337 is a deficient number, since it is larger than the sum of its proper divisors (32177462698663).

66781410701337 is a wasteful number, since it uses less digits than its factorization.

66781410701337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 586253477 (or 586253471 counting only the distinct ones).

The product of its (nonzero) digits is 3556224, while the sum is 54.

The spelling of 66781410701337 in words is "sixty-six trillion, seven hundred eighty-one billion, four hundred ten million, seven hundred one thousand, three hundred thirty-seven".