26570002220 has 12 divisors (see below), whose sum is σ = 55797004704. Its totient is φ = 10628000880.

The previous prime is 26570002189. The next prime is 26570002243. The reversal of 26570002220 is 2220007562.

It is a self number, because there is not a number n which added to its sum of digits gives 26570002220.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 664250036 + ... + 664250075.

It is an arithmetic number, because the mean of its divisors is an integer number (4649750392).

Almost surely, 2^26570002220 is an apocalyptic number.

26570002220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26570002220 is an abundant number, since it is smaller than the sum of its proper divisors (29227002484).

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

26570002220 is a wasteful number, since it uses less digits than its factorization.

26570002220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1328500120 (or 1328500118 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

Adding to 26570002220 its reverse (2220007562), we get a palindrome (28790009782).

The spelling of 26570002220 in words is "twenty-six billion, five hundred seventy million, two thousand, two hundred twenty".