66058277247 has 40 divisors (see below), whose sum is σ = 99117120960. Its totient is φ = 43844068800.

The previous prime is 66058277231. The next prime is 66058277251. The reversal of 66058277247 is 74277285066.

66058277247 is a `hidden beast` number, since 6 + 605 + 8 + 2 + 7 + 7 + 24 + 7 = 666.

It is not a de Polignac number, because 66058277247 - 2⁴ = 66058277231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66058277193 and 66058277202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66058277447) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 21177754 + ... + 21180872.

It is an arithmetic number, because the mean of its divisors is an integer number (2477928024).

Almost surely, 2^66058277247 is an apocalyptic number.

66058277247 is a deficient number, since it is larger than the sum of its proper divisors (33058843713).

66058277247 is a wasteful number, since it uses less digits than its factorization.

66058277247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4205 (or 4196 counting only the distinct ones).

The product of its (nonzero) digits is 7902720, while the sum is 54.

The spelling of 66058277247 in words is "sixty-six billion, fifty-eight million, two hundred seventy-seven thousand, two hundred forty-seven".