64305351506131 has 2 divisors, whose sum is σ = 64305351506132. Its totient is φ = 64305351506130.

The previous prime is 64305351506111. The next prime is 64305351506191. The reversal of 64305351506131 is 13160515350346.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64305351506131 - 2¹¹ = 64305351504083 is a prime.

It is a super-2 number, since 2×64305351506131² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (64305351506111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32152675753065 + 32152675753066.

It is an arithmetic number, because the mean of its divisors is an integer number (32152675753066).

Almost surely, 2^{64305351506131} is an apocalyptic number.

64305351506131 is a deficient number, since it is larger than the sum of its proper divisors (1).

64305351506131 is an equidigital number, since it uses as much as digits as its factorization.

64305351506131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486000, while the sum is 43.

Adding to 64305351506131 its reverse (13160515350346), we get a palindrome (77465866856477).

The spelling of 64305351506131 in words is "sixty-four trillion, three hundred five billion, three hundred fifty-one million, five hundred six thousand, one hundred thirty-one".