66740014116 has 18 divisors (see below), whose sum is σ = 168703924662. Its totient is φ = 22246671360.

The previous prime is 66740014087. The next prime is 66740014127. The reversal of 66740014116 is 61141004766.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 54028353600 + 12711660516 = 232440^2 + 112746^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×66740014116² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1853889281 = 66740014116 / (6 + 6 + 7 + 4 + 0 + 0 + 1 + 4 + 1 + 1 + 6).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 926944605 + ... + 926944676.

It is an arithmetic number, because the mean of its divisors is an integer number (9372440259).

Almost surely, 2^66740014116 is an apocalyptic number.

It is an amenable number.

66740014116 is an abundant number, since it is smaller than the sum of its proper divisors (101963910546).

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

66740014116 is a wasteful number, since it uses less digits than its factorization.

66740014116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1853889291 (or 1853889286 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 66740014116 in words is "sixty-six billion, seven hundred forty million, fourteen thousand, one hundred sixteen".