66337379 has 4 divisors (see below), whose sum is σ = 69828840. Its totient is φ = 62845920.

The previous prime is 66337361. The next prime is 66337399. The reversal of 66337379 is 97373366.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-66337379 is a prime.

It is a super-3 number, since 3×66337379³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66337339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1745702 + ... + 1745739.

It is an arithmetic number, because the mean of its divisors is an integer number (17457210).

Almost surely, 2^66337379 is an apocalyptic number.

66337379 is a deficient number, since it is larger than the sum of its proper divisors (3491461).

66337379 is a wasteful number, since it uses less digits than its factorization.

66337379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3491460.

The product of its digits is 428652, while the sum is 44.

The square root of 66337379 is about 8144.7761786313. The cubic root of 66337379 is about 404.8114328187.

The spelling of 66337379 in words is "sixty-six million, three hundred thirty-seven thousand, three hundred seventy-nine".