2661541315226 has 16 divisors (see below), whose sum is σ = 4202573301600. Its totient is φ = 1260688202928.

The previous prime is 2661541315211. The next prime is 2661541315231. The reversal of 2661541315226 is 6225131451662.

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 7 ways as a sum of consecutive naturals, for example, 10265 + ... + 2307203.

It is an arithmetic number, because the mean of its divisors is an integer number (262660831350).

Almost surely, 2^{2661541315226} is an apocalyptic number.

2661541315226 is a deficient number, since it is larger than the sum of its proper divisors (1541031986374).

2661541315226 is a wasteful number, since it uses less digits than its factorization.

2661541315226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2327453.

The product of its digits is 518400, while the sum is 44.

Adding to 2661541315226 its reverse (6225131451662), we get a palindrome (8886672766888).

The spelling of 2661541315226 in words is "two trillion, six hundred sixty-one billion, five hundred forty-one million, three hundred fifteen thousand, two hundred twenty-six".