66740034037 has 4 divisors (see below), whose sum is σ = 67736154016. Its totient is φ = 65743914060.

The previous prime is 66740034019. The next prime is 66740034061. The reversal of 66740034037 is 73043004766.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 66740034037 - 2¹¹ = 66740031989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66740034637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 498059889 + ... + 498060022.

It is an arithmetic number, because the mean of its divisors is an integer number (16934038504).

Almost surely, 2^66740034037 is an apocalyptic number.

66740034037 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

It is an amenable number.

66740034037 is a deficient number, since it is larger than the sum of its proper divisors (996119979).

66740034037 is an equidigital number, since it uses as much as digits as its factorization.

66740034037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 996119978.

The product of its (nonzero) digits is 254016, while the sum is 40.

The spelling of 66740034037 in words is "sixty-six billion, seven hundred forty million, thirty-four thousand, thirty-seven".