66080311297 has 32 divisors (see below), whose sum is σ = 89361699840. Its totient is φ = 47188249920.

The previous prime is 66080311291. The next prime is 66080311313. The reversal of 66080311297 is 79211308066.

It is not a de Polignac number, because 66080311297 - 2³ = 66080311289 is a prime.

It is a super-2 number, since 2×66080311297² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (66080311291) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 98323 + ... + 376600.

It is an arithmetic number, because the mean of its divisors is an integer number (2792553120).

Almost surely, 2^66080311297 is an apocalyptic number.

It is an amenable number.

66080311297 is a deficient number, since it is larger than the sum of its proper divisors (23281388543).

66080311297 is a wasteful number, since it uses less digits than its factorization.

66080311297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475093.

The product of its (nonzero) digits is 108864, while the sum is 43.

The spelling of 66080311297 in words is "sixty-six billion, eighty million, three hundred eleven thousand, two hundred ninety-seven".