26223164646 has 64 divisors (see below), whose sum is σ = 60361555968. Its totient is φ = 7439570208.

The previous prime is 26223164641. The next prime is 26223164663. The reversal of 26223164646 is 64646132262.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 26223164598 and 26223164607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26223164641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10821391 + ... + 10823813.

It is an arithmetic number, because the mean of its divisors is an integer number (943149312).

Almost surely, 2^26223164646 is an apocalyptic number.

26223164646 is an abundant number, since it is smaller than the sum of its proper divisors (34138391322).

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

26223164646 is a wasteful number, since it uses less digits than its factorization.

26223164646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4145.

The product of its digits is 497664, while the sum is 42.

The spelling of 26223164646 in words is "twenty-six billion, two hundred twenty-three million, one hundred sixty-four thousand, six hundred forty-six".