264155463 has 72 divisors (see below), whose sum is σ = 462431424. Its totient is φ = 144270720.

The previous prime is 264155447. The next prime is 264155477. The reversal of 264155463 is 364551462.

264155463 is a `hidden beast` number, since 2 + 6 + 41 + 554 + 63 = 666.

It is not a de Polignac number, because 264155463 - 2⁴ = 264155447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264155413) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 665181 + ... + 665577.

Almost surely, 2^264155463 is an apocalyptic number.

264155463 is a deficient number, since it is larger than the sum of its proper divisors (198275961).

264155463 is a wasteful number, since it uses less digits than its factorization.

264155463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485 (or 471 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 264155463 is about 16252.8601482939. The cubic root of 264155463 is about 641.6327637416.

It can be divided in two parts, 26415 and 5463, that added together give a triangular number (31878 = T₂₅₂).

The spelling of 264155463 in words is "two hundred sixty-four million, one hundred fifty-five thousand, four hundred sixty-three".