340443125551 has 2 divisors, whose sum is σ = 340443125552. Its totient is φ = 340443125550.

The previous prime is 340443125537. The next prime is 340443125563. The reversal of 340443125551 is 155521344043.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 340443125551 - 2²⁵ = 340409571119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 340443125551.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340443125591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170221562775 + 170221562776.

It is an arithmetic number, because the mean of its divisors is an integer number (170221562776).

Almost surely, 2^340443125551 is an apocalyptic number.

340443125551 is a deficient number, since it is larger than the sum of its proper divisors (1).

340443125551 is an equidigital number, since it uses as much as digits as its factorization.

340443125551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144000, while the sum is 37.

Adding to 340443125551 its reverse (155521344043), we get a palindrome (495964469594).

The spelling of 340443125551 in words is "three hundred forty billion, four hundred forty-three million, one hundred twenty-five thousand, five hundred fifty-one".