66614930247 has 16 divisors (see below), whose sum is σ = 89458000128. Its totient is φ = 44091824640.

The previous prime is 66614930197. The next prime is 66614930273. The reversal of 66614930247 is 74203941666.

It is not a de Polignac number, because 66614930247 - 2⁷ = 66614930119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 66614930196 and 66614930205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66610930247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176872 + ... + 405602.

It is an arithmetic number, because the mean of its divisors is an integer number (5591125008).

Almost surely, 2^66614930247 is an apocalyptic number.

66614930247 is a deficient number, since it is larger than the sum of its proper divisors (22843069881).

66614930247 is a wasteful number, since it uses less digits than its factorization.

66614930247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229430.

The product of its (nonzero) digits is 1306368, while the sum is 48.

The spelling of 66614930247 in words is "sixty-six billion, six hundred fourteen million, nine hundred thirty thousand, two hundred forty-seven".