223126551006261 has 16 divisors (see below), whose sum is σ = 340004955907584. Its totient is φ = 127499914113264.

The previous prime is 223126551006257. The next prime is 223126551006263. The reversal of 223126551006261 is 162600155621322.

It is not a de Polignac number, because 223126551006261 - 2² = 223126551006257 is a prime.

It is a super-3 number, since 3×223126551006261³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223126551006263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37683031 + ... + 43200276.

It is an arithmetic number, because the mean of its divisors is an integer number (21250309744224).

Almost surely, 2^{223126551006261} is an apocalyptic number.

223126551006261 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

223126551006261 is a deficient number, since it is larger than the sum of its proper divisors (116878404901323).

223126551006261 is a wasteful number, since it uses less digits than its factorization.

223126551006261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81014680.

The product of its (nonzero) digits is 259200, while the sum is 42.

The spelling of 223126551006261 in words is "two hundred twenty-three trillion, one hundred twenty-six billion, five hundred fifty-one million, six thousand, two hundred sixty-one".