26580085156 has 9 divisors (see below), whose sum is σ = 46515719649. Its totient is φ = 13289879544.

The previous prime is 26580085151. The next prime is 26580085211. The reversal of 26580085156 is 65158008562.

It is a happy number.

The square root of 26580085156 is 163034.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 406022500 + 26174062656 = 20150^2 + 161784^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26580085151) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 285310 + ... + 366826.

Almost surely, 2^26580085156 is an apocalyptic number.

26580085156 is the 163034-th square number.

It is an amenable number.

26580085156 is a deficient number, since it is larger than the sum of its proper divisors (19935634493).

26580085156 is an frugal number, since it uses more digits than its factorization.

26580085156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163038 (or 81519 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 46.

The spelling of 26580085156 in words is "twenty-six billion, five hundred eighty million, eighty-five thousand, one hundred fifty-six".