264536564761 has 16 divisors (see below), whose sum is σ = 313577884800. Its totient is φ = 218349105408.

The previous prime is 264536564759. The next prime is 264536564771. The reversal of 264536564761 is 167465635462.

It is not a de Polignac number, because 264536564761 - 2¹ = 264536564759 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264536564771) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1642240 + ... + 1796113.

It is an arithmetic number, because the mean of its divisors is an integer number (19598617800).

Almost surely, 2^264536564761 is an apocalyptic number.

It is an amenable number.

264536564761 is a deficient number, since it is larger than the sum of its proper divisors (49041320039).

264536564761 is a wasteful number, since it uses less digits than its factorization.

264536564761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3438768.

The product of its digits is 21772800, while the sum is 55.

The spelling of 264536564761 in words is "two hundred sixty-four billion, five hundred thirty-six million, five hundred sixty-four thousand, seven hundred sixty-one".