264145664543 has 8 divisors (see below), whose sum is σ = 278059440000. Its totient is φ = 250233026328.

The previous prime is 264145664537. The next prime is 264145664551. The reversal of 264145664543 is 345466541462.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 264145664543 - 2¹⁶ = 264145599007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 264145664491 and 264145664500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264145664443) 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, 214958 + ... + 757956.

It is an arithmetic number, because the mean of its divisors is an integer number (34757430000).

Almost surely, 2^264145664543 is an apocalyptic number.

264145664543 is a deficient number, since it is larger than the sum of its proper divisors (13913775457).

264145664543 is a wasteful number, since it uses less digits than its factorization.

264145664543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568621.

The product of its digits is 8294400, while the sum is 50.

The spelling of 264145664543 in words is "two hundred sixty-four billion, one hundred forty-five million, six hundred sixty-four thousand, five hundred forty-three".