264432642511545 has 12 divisors (see below), whose sum is σ = 458349913686756. Its totient is φ = 141030742672800.

The previous prime is 264432642511501. The next prime is 264432642511561. The reversal of 264432642511545 is 545115246234462.

264432642511545 is a `hidden beast` number, since 2 + 6 + 4 + 4 + 3 + 2 + 6 + 42 + 51 + 1 + 545 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 98721294067881 + 165711348443664 = 9935859^2 + 12872892^2 .

It is a de Polignac number, because none of the positive numbers 2^k-264432642511545 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 264432642511491 and 264432642511500.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2938140472306 + ... + 2938140472395.

It is an arithmetic number, because the mean of its divisors is an integer number (38195826140563).

Almost surely, 2^{264432642511545} is an apocalyptic number.

It is an amenable number.

264432642511545 is a deficient number, since it is larger than the sum of its proper divisors (193917271175211).

264432642511545 is a wasteful number, since it uses less digits than its factorization.

264432642511545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5876280944712 (or 5876280944709 counting only the distinct ones).

The product of its digits is 27648000, while the sum is 54.

The spelling of 264432642511545 in words is "two hundred sixty-four trillion, four hundred thirty-two billion, six hundred forty-two million, five hundred eleven thousand, five hundred forty-five".