402455664230401 has 2 divisors, whose sum is σ = 402455664230402. Its totient is φ = 402455664230400.

The previous prime is 402455664230393. The next prime is 402455664230449. The reversal of 402455664230401 is 104032466554204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 391708380557376 + 10747283673025 = 19791624^2 + 3278305^2 .

It is a cyclic number.

It is not a de Polignac number, because 402455664230401 - 2³ = 402455664230393 is a prime.

It is a super-2 number, since 2×402455664230401² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (402455664230461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201227832115200 + 201227832115201.

It is an arithmetic number, because the mean of its divisors is an integer number (201227832115201).

Almost surely, 2^{402455664230401} is an apocalyptic number.

It is an amenable number.

402455664230401 is a deficient number, since it is larger than the sum of its proper divisors (1).

402455664230401 is an equidigital number, since it uses as much as digits as its factorization.

402455664230401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2764800, while the sum is 46.

The spelling of 402455664230401 in words is "four hundred two trillion, four hundred fifty-five billion, six hundred sixty-four million, two hundred thirty thousand, four hundred one".