345663526669 has 2 divisors, whose sum is σ = 345663526670. Its totient is φ = 345663526668.

The previous prime is 345663526631. The next prime is 345663526711. The reversal of 345663526669 is 966625366543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 294020964169 + 51642562500 = 542237^2 + 227250^2 .

It is a cyclic number.

It is not a de Polignac number, because 345663526669 - 2²³ = 345655138061 is a prime.

It is a super-2 number, since 2×345663526669² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345663526469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172831763334 + 172831763335.

It is an arithmetic number, because the mean of its divisors is an integer number (172831763335).

Almost surely, 2^345663526669 is an apocalyptic number.

It is an amenable number.

345663526669 is a deficient number, since it is larger than the sum of its proper divisors (1).

345663526669 is an equidigital number, since it uses as much as digits as its factorization.

345663526669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 125971200, while the sum is 61.

The spelling of 345663526669 in words is "three hundred forty-five billion, six hundred sixty-three million, five hundred twenty-six thousand, six hundred sixty-nine".