1646465420471 has 2 divisors, whose sum is σ = 1646465420472. Its totient is φ = 1646465420470.

The previous prime is 1646465420447. The next prime is 1646465420489. The reversal of 1646465420471 is 1740245646461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1646465420471 - 2³⁰ = 1645391678647 is a prime.

It is a super-3 number, since 3×1646465420471³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1646365420471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 823232710235 + 823232710236.

It is an arithmetic number, because the mean of its divisors is an integer number (823232710236).

Almost surely, 2^{1646465420471} is an apocalyptic number.

1646465420471 is a deficient number, since it is larger than the sum of its proper divisors (1).

1646465420471 is an equidigital number, since it uses as much as digits as its factorization.

1646465420471 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3870720, while the sum is 50.

The spelling of 1646465420471 in words is "one trillion, six hundred forty-six billion, four hundred sixty-five million, four hundred twenty thousand, four hundred seventy-one".