305230346666451 has 20 divisors (see below), whose sum is σ = 468284662658032. Its totient is φ = 197987251889808.

The previous prime is 305230346666437. The next prime is 305230346666491. The reversal of 305230346666451 is 154666643032503.

It is not a de Polignac number, because 305230346666451 - 2²² = 305230342472147 is a prime.

It is a super-2 number, since 2×305230346666451² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (305230346666491) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 50922644095 + ... + 50922650088.

Almost surely, 2^{305230346666451} is an apocalyptic number.

305230346666451 is a deficient number, since it is larger than the sum of its proper divisors (163054315991581).

305230346666451 is a wasteful number, since it uses less digits than its factorization.

305230346666451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101845294232 (or 101845294223 counting only the distinct ones).

The product of its (nonzero) digits is 27993600, while the sum is 54.

Adding to 305230346666451 its reverse (154666643032503), we get a palindrome (459896989698954).

The spelling of 305230346666451 in words is "three hundred five trillion, two hundred thirty billion, three hundred forty-six million, six hundred sixty-six thousand, four hundred fifty-one".