26516042220 has 48 divisors (see below), whose sum is σ = 75010346208. Its totient is φ = 6998046720.

The previous prime is 26516042219. The next prime is 26516042239. The reversal of 26516042220 is 2224061562.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2272191 + ... + 2283830.

It is an arithmetic number, because the mean of its divisors is an integer number (1562715546).

Almost surely, 2^26516042220 is an apocalyptic number.

26516042220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26516042220 is an abundant number, since it is smaller than the sum of its proper divisors (48494303988).

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

26516042220 is a wasteful number, since it uses less digits than its factorization.

26516042220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4556130 (or 4556128 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The spelling of 26516042220 in words is "twenty-six billion, five hundred sixteen million, forty-two thousand, two hundred twenty".