2267258566821 has 32 divisors (see below), whose sum is σ = 3199174133760. Its totient is φ = 1425291806400.

The previous prime is 2267258566799. The next prime is 2267258566871. The reversal of 2267258566821 is 1286658527622.

It is not a de Polignac number, because 2267258566821 - 2⁵ = 2267258566789 is a prime.

It is a super-2 number, since 2×2267258566821² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2267258566871) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 96307470 + ... + 96331008.

It is an arithmetic number, because the mean of its divisors is an integer number (99974191680).

Almost surely, 2^{2267258566821} is an apocalyptic number.

It is an amenable number.

2267258566821 is a deficient number, since it is larger than the sum of its proper divisors (931915566939).

2267258566821 is a wasteful number, since it uses less digits than its factorization.

2267258566821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43297.

The product of its digits is 38707200, while the sum is 60.

The spelling of 2267258566821 in words is "two trillion, two hundred sixty-seven billion, two hundred fifty-eight million, five hundred sixty-six thousand, eight hundred twenty-one".