26645324560 has 40 divisors (see below), whose sum is σ = 61973283456. Its totient is φ = 10654189440.

The previous prime is 26645324501. The next prime is 26645324591. The reversal of 26645324560 is 6542354662.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

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, 161175 + ... + 281545.

Almost surely, 2^26645324560 is an apocalyptic number.

26645324560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26645324560 is an abundant number, since it is smaller than the sum of its proper divisors (35327958896).

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

26645324560 is a wasteful number, since it uses less digits than its factorization.

26645324560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123151 (or 123145 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 43.

The spelling of 26645324560 in words is "twenty-six billion, six hundred forty-five million, three hundred twenty-four thousand, five hundred sixty".