66641000419 has 8 divisors (see below), whose sum is σ = 76274315360. Its totient is φ = 57035978496.

The previous prime is 66641000417. The next prime is 66641000509. The reversal of 66641000419 is 91400014666.

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

It is not a de Polignac number, because 66641000419 - 2¹ = 66641000417 is a prime.

It is a super-2 number, since 2×66641000419² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66641000417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7068204 + ... + 7077625.

It is an arithmetic number, because the mean of its divisors is an integer number (9534289420).

Almost surely, 2^66641000419 is an apocalyptic number.

66641000419 is the 149043-rd hex number.

66641000419 is a deficient number, since it is larger than the sum of its proper divisors (9633314941).

66641000419 is a wasteful number, since it uses less digits than its factorization.

66641000419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14146509.

The product of its (nonzero) digits is 31104, while the sum is 37.

The spelling of 66641000419 in words is "sixty-six billion, six hundred forty-one million, four hundred nineteen", and thus it is an aban number.