264435115442420 has 24 divisors (see below), whose sum is σ = 598030184154984. Its totient is φ = 97637581086336.

The previous prime is 264435115442419. The next prime is 264435115442497. The reversal of 264435115442420 is 24244511534462.

It can be written as a sum of positive squares in 4 ways, for example, as 36707579107684 + 227727536334736 = 6058678^2 + 15090644^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 508529067899 + ... + 508529068418.

It is an arithmetic number, because the mean of its divisors is an integer number (24917924339791).

Almost surely, 2^{264435115442420} is an apocalyptic number.

264435115442420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264435115442420 is an abundant number, since it is smaller than the sum of its proper divisors (333595068712564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

264435115442420 is a wasteful number, since it uses less digits than its factorization.

264435115442420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1017058136339 (or 1017058136337 counting only the distinct ones).

The product of its (nonzero) digits is 3686400, while the sum is 47.

Adding to 264435115442420 its reverse (24244511534462), we get a palindrome (288679626976882).

The spelling of 264435115442420 in words is "two hundred sixty-four trillion, four hundred thirty-five billion, one hundred fifteen million, four hundred forty-two thousand, four hundred twenty".