66460053623 has 8 divisors (see below), whose sum is σ = 72796002480. Its totient is φ = 60393719680.

The previous prime is 66460053619. The next prime is 66460053629. The reversal of 66460053623 is 32635006466.

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 66460053623 - 2² = 66460053619 is a prime.

It is a super-2 number, since 2×66460053623² (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 (66460053629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67403213 + ... + 67404198.

It is an arithmetic number, because the mean of its divisors is an integer number (9099500310).

Almost surely, 2^66460053623 is an apocalyptic number.

66460053623 is a deficient number, since it is larger than the sum of its proper divisors (6335948857).

66460053623 is a wasteful number, since it uses less digits than its factorization.

66460053623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134807457.

The product of its (nonzero) digits is 466560, while the sum is 41.

The spelling of 66460053623 in words is "sixty-six billion, four hundred sixty million, fifty-three thousand, six hundred twenty-three".