66660341461 has 8 divisors (see below), whose sum is σ = 76191399104. Its totient is φ = 57131321760.

The previous prime is 66660341459. The next prime is 66660341471. The reversal of 66660341461 is 16414306666.

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

It is a cyclic number.

It is not a de Polignac number, because 66660341461 - 2¹ = 66660341459 is a prime.

It is a super-2 number, since 2×66660341461² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66660341441) 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, 438735 + ... + 570796.

It is an arithmetic number, because the mean of its divisors is an integer number (9523924888).

Almost surely, 2^66660341461 is an apocalyptic number.

It is an amenable number.

66660341461 is a deficient number, since it is larger than the sum of its proper divisors (9531057643).

66660341461 is a wasteful number, since it uses less digits than its factorization.

66660341461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018971.

The product of its (nonzero) digits is 373248, while the sum is 43.

The spelling of 66660341461 in words is "sixty-six billion, six hundred sixty million, three hundred forty-one thousand, four hundred sixty-one".