264440636541026 has 16 divisors (see below), whose sum is σ = 432879489547488. Its totient is φ = 120156276021600.

The previous prime is 264440636541017. The next prime is 264440636541113. The reversal of 264440636541026 is 620145636044462.

It is a super-2 number, since 2×264440636541026² (a number of 30 digits) contains 22 as substring.

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, 2200604315 + ... + 2200724478.

It is an arithmetic number, because the mean of its divisors is an integer number (27054968096718).

Almost surely, 2^{264440636541026} is an apocalyptic number.

264440636541026 is a deficient number, since it is larger than the sum of its proper divisors (168438853006462).

264440636541026 is a wasteful number, since it uses less digits than its factorization.

264440636541026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4401331537.

The product of its (nonzero) digits is 19906560, while the sum is 53.

The spelling of 264440636541026 in words is "two hundred sixty-four trillion, four hundred forty billion, six hundred thirty-six million, five hundred forty-one thousand, twenty-six".