66150716737 has 8 divisors (see below), whose sum is σ = 78887811456. Its totient is φ = 54235370112.

The previous prime is 66150716701. The next prime is 66150716747. The reversal of 66150716737 is 73761705166.

It is a happy number.

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

It is not a de Polignac number, because 66150716737 - 2²³ = 66142328129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66150716747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205436848 + ... + 205437169.

It is an arithmetic number, because the mean of its divisors is an integer number (9860976432).

Almost surely, 2^66150716737 is an apocalyptic number.

It is an amenable number.

66150716737 is a deficient number, since it is larger than the sum of its proper divisors (12737094719).

66150716737 is a wasteful number, since it uses less digits than its factorization.

66150716737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410874047.

The product of its (nonzero) digits is 1111320, while the sum is 49.

The spelling of 66150716737 in words is "sixty-six billion, one hundred fifty million, seven hundred sixteen thousand, seven hundred thirty-seven".