26201664 has 112 divisors (see below), whose sum is σ = 78638400. Its totient is φ = 8552448.

The previous prime is 26201657. The next prime is 26201677. The reversal of 26201664 is 46610262.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101824 + ... + 102080.

Almost surely, 2^26201664 is an apocalyptic number.

26201664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26201664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39319200).

26201664 is an abundant number, since it is smaller than the sum of its proper divisors (52436736).

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

26201664 is a wasteful number, since it uses less digits than its factorization.

26201664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337 (or 321 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 26201664 is about 5118.7560988975. The cubic root of 26201664 is about 297.0135694239.

The spelling of 26201664 in words is "twenty-six million, two hundred one thousand, six hundred sixty-four".