66015232029 has 6 divisors (see below), whose sum is σ = 95355335166. Its totient is φ = 44010154680.

The previous prime is 66015232013. The next prime is 66015232061. The reversal of 66015232029 is 92023251066.

66015232029 is a `hidden beast` number, since 6 + 601 + 5 + 2 + 3 + 20 + 29 = 666.

It can be written as a sum of positive squares in only one way, i.e., 58336740900 + 7678491129 = 241530^2 + 87627^2 .

It is not a de Polignac number, because 66015232029 - 2⁴ = 66015232013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66015231984 and 66015232002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66015232429) 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 5 ways as a sum of consecutive naturals, for example, 3667512882 + ... + 3667512899.

It is an arithmetic number, because the mean of its divisors is an integer number (15892555861).

Almost surely, 2^66015232029 is an apocalyptic number.

It is an amenable number.

66015232029 is a deficient number, since it is larger than the sum of its proper divisors (29340103137).

66015232029 is a wasteful number, since it uses less digits than its factorization.

66015232029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7335025787 (or 7335025784 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The spelling of 66015232029 in words is "sixty-six billion, fifteen million, two hundred thirty-two thousand, twenty-nine".