26466164500 has 24 divisors (see below), whose sum is σ = 57802104360. Its totient is φ = 10586465600.

The previous prime is 26466164467. The next prime is 26466164503. The reversal of 26466164500 is 546166462.

It can be written as a sum of positive squares in 4 ways, for example, as 132664324 + 26333500176 = 11518^2 + 162276^2 .

It is a super-3 number, since 3×26466164500³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26466164503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26465665 + ... + 26466664.

It is an arithmetic number, because the mean of its divisors is an integer number (2408421015).

Almost surely, 2^26466164500 is an apocalyptic number.

26466164500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26466164500 is an abundant number, since it is smaller than the sum of its proper divisors (31335939860).

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

26466164500 is a wasteful number, since it uses less digits than its factorization.

26466164500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52932348 (or 52932336 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 26466164500 in words is "twenty-six billion, four hundred sixty-six million, one hundred sixty-four thousand, five hundred".