233668226690 has 16 divisors (see below), whose sum is σ = 420613999992. Its totient is φ = 93464803584.

The previous prime is 233668226663. The next prime is 233668226713. The reversal of 233668226690 is 96622866332.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 179385284521 + 54282942169 = 423539^2 + 232987^2 .

It is a super-2 number, since 2×233668226690² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110972 + ... + 692568.

Almost surely, 2^233668226690 is an apocalyptic number.

233668226690 is a deficient number, since it is larger than the sum of its proper divisors (186945773302).

233668226690 is a wasteful number, since it uses less digits than its factorization.

233668226690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621781.

The product of its (nonzero) digits is 6718464, while the sum is 53.

The spelling of 233668226690 in words is "two hundred thirty-three billion, six hundred sixty-eight million, two hundred twenty-six thousand, six hundred ninety".