44661365999 has 4 divisors (see below), whose sum is σ = 45504033336. Its totient is φ = 43818698664.

The previous prime is 44661365981. The next prime is 44661366007. The reversal of 44661365999 is 99956316644.

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

It is a cyclic number.

It is not a de Polignac number, because 44661365999 - 2¹² = 44661361903 is a prime.

It is a super-2 number, since 2×44661365999² (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 (44661365699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 421333589 + ... + 421333694.

It is an arithmetic number, because the mean of its divisors is an integer number (11376008334).

Almost surely, 2^44661365999 is an apocalyptic number.

44661365999 is a deficient number, since it is larger than the sum of its proper divisors (842667337).

44661365999 is an equidigital number, since it uses as much as digits as its factorization.

44661365999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842667336.

The product of its digits is 37791360, while the sum is 62.

The spelling of 44661365999 in words is "forty-four billion, six hundred sixty-one million, three hundred sixty-five thousand, nine hundred ninety-nine".