264440621465432 has 16 divisors (see below), whose sum is σ = 517383824606640. Its totient is φ = 126471601570336.

The previous prime is 264440621465389. The next prime is 264440621465453. The reversal of 264440621465432 is 234564126044462.

264440621465432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 718588645103 + ... + 718588645470.

It is an arithmetic number, because the mean of its divisors is an integer number (32336489037915).

Almost surely, 2^{264440621465432} is an apocalyptic number.

It is an amenable number.

264440621465432 is a deficient number, since it is larger than the sum of its proper divisors (252943203141208).

264440621465432 is a wasteful number, since it uses less digits than its factorization.

264440621465432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1437177290602 (or 1437177290598 counting only the distinct ones).

The product of its (nonzero) digits is 26542080, while the sum is 53.

The spelling of 264440621465432 in words is "two hundred sixty-four trillion, four hundred forty billion, six hundred twenty-one million, four hundred sixty-five thousand, four hundred thirty-two".