66376047 has 8 divisors (see below), whose sum is σ = 90559744. Its totient is φ = 43221528.

The previous prime is 66376043. The next prime is 66376049. The reversal of 66376047 is 74067366.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 66376047 - 2² = 66376043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 66375996 and 66376014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66376043) 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 7 ways as a sum of consecutive naturals, for example, 257143 + ... + 257400.

It is an arithmetic number, because the mean of its divisors is an integer number (11319968).

Almost surely, 2^66376047 is an apocalyptic number.

66376047 is a deficient number, since it is larger than the sum of its proper divisors (24183697).

66376047 is a wasteful number, since it uses less digits than its factorization.

66376047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514589.

The product of its (nonzero) digits is 127008, while the sum is 39.

The square root of 66376047 is about 8147.1496242551. The cubic root of 66376047 is about 404.8900722840.

The spelling of 66376047 in words is "sixty-six million, three hundred seventy-six thousand, forty-seven".