60665066505 has 32 divisors (see below), whose sum is σ = 111567945600. Its totient is φ = 31239020736.

The previous prime is 60665066489. The next prime is 60665066509. The reversal of 60665066505 is 50566056606.

It is not a de Polignac number, because 60665066505 - 2⁴ = 60665066489 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (60665066509) 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, 7743859 + ... + 7751688.

It is an arithmetic number, because the mean of its divisors is an integer number (3486498300).

Almost surely, 2^60665066505 is an apocalyptic number.

It is an amenable number.

60665066505 is a deficient number, since it is larger than the sum of its proper divisors (50902879095).

60665066505 is a wasteful number, since it uses less digits than its factorization.

60665066505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15495590 (or 15495584 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 45.

The spelling of 60665066505 in words is "sixty billion, six hundred sixty-five million, sixty-six thousand, five hundred five".