66038464645 has 8 divisors (see below), whose sum is σ = 79466901120. Its totient is φ = 52683609360.

The previous prime is 66038464631. The next prime is 66038464663. The reversal of 66038464645 is 54646483066.

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

It is not a de Polignac number, because 66038464645 - 2²⁷ = 65904246917 is a prime.

It is a super-2 number, since 2×66038464645² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 66038464592 and 66038464601.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18393321 + ... + 18396910.

It is an arithmetic number, because the mean of its divisors is an integer number (9933362640).

Almost surely, 2^66038464645 is an apocalyptic number.

It is an amenable number.

66038464645 is a deficient number, since it is larger than the sum of its proper divisors (13428436475).

66038464645 is a wasteful number, since it uses less digits than its factorization.

66038464645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36790595.

The product of its (nonzero) digits is 9953280, while the sum is 52.

The spelling of 66038464645 in words is "sixty-six billion, thirty-eight million, four hundred sixty-four thousand, six hundred forty-five".