451453240161 has 192 divisors, whose sum is σ = 854436211200. Its totient is φ = 222856704000.

The previous prime is 451453240159. The next prime is 451453240163. The reversal of 451453240161 is 161042354154.

451453240161 is a `hidden beast` number, since 4 + 5 + 1 + 453 + 2 + 40 + 161 = 666.

It is an interprime number because it is at equal distance from previous prime (451453240159) and next prime (451453240163).

It is not a de Polignac number, because 451453240161 - 2¹ = 451453240159 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (451453240163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 399869445 + ... + 399870573.

It is an arithmetic number, because the mean of its divisors is an integer number (4450188600).

Almost surely, 2^451453240161 is an apocalyptic number.

It is an amenable number.

451453240161 is a deficient number, since it is larger than the sum of its proper divisors (402982971039).

451453240161 is a wasteful number, since it uses less digits than its factorization.

451453240161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1480 (or 1477 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 451453240161 in words is "four hundred fifty-one billion, four hundred fifty-three million, two hundred forty thousand, one hundred sixty-one".