146662565431 has 2 divisors, whose sum is σ = 146662565432. Its totient is φ = 146662565430.

The previous prime is 146662565347. The next prime is 146662565443. The reversal of 146662565431 is 134565266641.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146662565431 is a prime.

It is a super-2 number, since 2×146662565431² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146662565471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73331282715 + 73331282716.

It is an arithmetic number, because the mean of its divisors is an integer number (73331282716).

Almost surely, 2^146662565431 is an apocalyptic number.

146662565431 is a deficient number, since it is larger than the sum of its proper divisors (1).

146662565431 is an equidigital number, since it uses as much as digits as its factorization.

146662565431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3110400, while the sum is 49.

The spelling of 146662565431 in words is "one hundred forty-six billion, six hundred sixty-two million, five hundred sixty-five thousand, four hundred thirty-one".