544664686466445 has 16 divisors (see below), whose sum is σ = 873799861621632. Its totient is φ = 289709045023680.

The previous prime is 544664686466399. The next prime is 544664686466477.

544664686466445 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 544664686466445 - 2¹³ = 544664686458253 is a prime.

It is a super-2 number, since 2×544664686466445² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48674229121 + ... + 48674240310.

It is an arithmetic number, because the mean of its divisors is an integer number (54612491351352).

Almost surely, 2^{544664686466445} is an apocalyptic number.

It is an amenable number.

544664686466445 is a deficient number, since it is larger than the sum of its proper divisors (329135175155187).

544664686466445 is a wasteful number, since it uses less digits than its factorization.

544664686466445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97348469812.

The product of its digits is 38220595200, while the sum is 78.

The spelling of 544664686466445 in words is "five hundred forty-four trillion, six hundred sixty-four billion, six hundred eighty-six million, four hundred sixty-six thousand, four hundred forty-five".