46665656665 has 8 divisors (see below), whose sum is σ = 56916801288. Its totient is φ = 36720516480.

The previous prime is 46665656663. The next prime is 46665656707. The reversal of 46665656665 is 56665656664.

It can be written as a sum of positive squares in 4 ways, for example, as 35141184 + 46630515481 = 5928^2 + 215941^2 .

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

It is not a de Polignac number, because 46665656665 - 2¹ = 46665656663 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (46665656663) 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, 76500772 + ... + 76501381.

It is an arithmetic number, because the mean of its divisors is an integer number (7114600161).

Almost surely, 2^46665656665 is an apocalyptic number.

It is an amenable number.

46665656665 is a deficient number, since it is larger than the sum of its proper divisors (10251144623).

46665656665 is a wasteful number, since it uses less digits than its factorization.

46665656665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153002219.

The product of its digits is 139968000, while the sum is 61.

Subtracting 46665656665 from its reverse (56665656664), we obtain a palindrome (9999999999).

The spelling of 46665656665 in words is "forty-six billion, six hundred sixty-five million, six hundred fifty-six thousand, six hundred sixty-five".