229051583991 has 12 divisors (see below), whose sum is σ = 330968129232. Its totient is φ = 152647590816.

The previous prime is 229051583953. The next prime is 229051583993. The reversal of 229051583991 is 199385150922.

It is a happy number.

229051583991 is a `hidden beast` number, since 2 + 2 + 9 + 0 + 51 + 583 + 9 + 9 + 1 = 666.

It is not a de Polignac number, because 229051583991 - 2⁹ = 229051583479 is a prime.

It is a super-2 number, since 2×229051583991² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229051583993) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4428291 + ... + 4479716.

It is an arithmetic number, because the mean of its divisors is an integer number (27580677436).

Almost surely, 2^229051583991 is an apocalyptic number.

229051583991 is a deficient number, since it is larger than the sum of its proper divisors (101916545241).

229051583991 is a wasteful number, since it uses less digits than its factorization.

229051583991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8910870 (or 8910867 counting only the distinct ones).

The product of its (nonzero) digits is 1749600, while the sum is 54.

The spelling of 229051583991 in words is "two hundred twenty-nine billion, fifty-one million, five hundred eighty-three thousand, nine hundred ninety-one".