66740134 has 8 divisors (see below), whose sum is σ = 101316600. Its totient is φ = 32967936.

The previous prime is 66740129. The next prime is 66740137. The reversal of 66740134 is 43104766.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 66740096 and 66740105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66740137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200859 + ... + 201190.

It is an arithmetic number, because the mean of its divisors is an integer number (12664575).

Almost surely, 2^66740134 is an apocalyptic number.

66740134 is a deficient number, since it is larger than the sum of its proper divisors (34576466).

66740134 is a wasteful number, since it uses less digits than its factorization.

66740134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402134.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 66740134 is about 8169.4635074771. The cubic root of 66740134 is about 405.6290260782.

The spelling of 66740134 in words is "sixty-six million, seven hundred forty thousand, one hundred thirty-four".