45646666664653 has 4 divisors (see below), whose sum is σ = 45646806730140. Its totient is φ = 45646526599168.

The previous prime is 45646666664597. The next prime is 45646666664719. The reversal of 45646666664653 is 35646666664654.

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

It can be written as a sum of positive squares in 2 ways, for example, as 14681871246249 + 30964795418404 = 3831693^2 + 5564602^2 .

It is a cyclic number.

It is not a de Polignac number, because 45646666664653 - 2³³ = 45638076730061 is a prime.

It is a super-2 number, since 2×45646666664653² (a number of 28 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 (45646666664153) 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, 69542758 + ... + 70196071.

It is an arithmetic number, because the mean of its divisors is an integer number (11411701682535).

Almost surely, 2^{45646666664653} is an apocalyptic number.

It is an amenable number.

45646666664653 is a deficient number, since it is larger than the sum of its proper divisors (140065487).

45646666664653 is a wasteful number, since it uses less digits than its factorization.

45646666664653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140065486.

The product of its digits is 8062156800, while the sum is 73.

Subtracting from 45646666664653 its reverse (35646666664654), we obtain a palindrome (9999999999999).

The spelling of 45646666664653 in words is "forty-five trillion, six hundred forty-six billion, six hundred sixty-six million, six hundred sixty-four thousand, six hundred fifty-three".