26164621662 has 16 divisors (see below), whose sum is σ = 52399681920. Its totient is φ = 8709800792.

The previous prime is 26164621601. The next prime is 26164621663. The reversal of 26164621662 is 26612646162.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26164621663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2930112 + ... + 2939027.

It is an arithmetic number, because the mean of its divisors is an integer number (3274980120).

Almost surely, 2^26164621662 is an apocalyptic number.

26164621662 is an abundant number, since it is smaller than the sum of its proper divisors (26235060258).

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

26164621662 is a wasteful number, since it uses less digits than its factorization.

26164621662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5869887.

The product of its digits is 248832, while the sum is 42.

The spelling of 26164621662 in words is "twenty-six billion, one hundred sixty-four million, six hundred twenty-one thousand, six hundred sixty-two".