264504455164543 has 4 divisors (see below), whose sum is σ = 288550314724968. Its totient is φ = 240458595604120.

The previous prime is 264504455164507. The next prime is 264504455164549. The reversal of 264504455164543 is 345461554405462.

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 264504455164543 - 2⁴¹ = 262305431908991 is a prime.

It is a super-3 number, since 3×264504455164543³ (a number of 44 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264504455164549) 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, 12022929780196 + ... + 12022929780217.

It is an arithmetic number, because the mean of its divisors is an integer number (72137578681242).

Almost surely, 2^{264504455164543} is an apocalyptic number.

264504455164543 is a deficient number, since it is larger than the sum of its proper divisors (24045859560425).

264504455164543 is a wasteful number, since it uses less digits than its factorization.

264504455164543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24045859560424.

The product of its (nonzero) digits is 138240000, while the sum is 58.

The spelling of 264504455164543 in words is "two hundred sixty-four trillion, five hundred four billion, four hundred fifty-five million, one hundred sixty-four thousand, five hundred forty-three".