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66413359 is a prime number
BaseRepresentation
bin1111110101011…
…0001100101111
311121222011000001
43331112030233
5114000211414
610331245131
71434334645
oct375261457
9147864001
1066413359
1134541381
121a2a97a7
13109b415c
148b6b195
155c6d074
hex3f5632f

66413359 has 2 divisors, whose sum is σ = 66413360. Its totient is φ = 66413358.

The previous prime is 66413357. The next prime is 66413387. The reversal of 66413359 is 95331466.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 66413359 - 21 = 66413357 is a prime.

Together with 66413357, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66413357) 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 as a sum of consecutive naturals, namely, 33206679 + 33206680.

It is an arithmetic number, because the mean of its divisors is an integer number (33206680).

Almost surely, 266413359 is an apocalyptic number.

66413359 is a deficient number, since it is larger than the sum of its proper divisors (1).

66413359 is an equidigital number, since it uses as much as digits as its factorization.

66413359 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58320, while the sum is 37.

The square root of 66413359 is about 8149.4391831586. The cubic root of 66413359 is about 404.9659250913.

It can be divided in two parts, 6641 and 3359, that added together give a 4-th power (10000 = 104).

The spelling of 66413359 in words is "sixty-six million, four hundred thirteen thousand, three hundred fifty-nine".