1455644145546 has 24 divisors (see below), whose sum is σ = 3158725529700. Its totient is φ = 484471656576.

The previous prime is 1455644145523. The next prime is 1455644145559. The reversal of 1455644145546 is 6455414465541.

1455644145546 is a `hidden beast` number, since 1 + 4 + 5 + 56 + 4 + 4 + 1 + 45 + 546 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1110623007321 + 345021138225 = 1053861^2 + 587385^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1455644145492 and 1455644145501.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61909471 + ... + 61932978.

Almost surely, 2^{1455644145546} is an apocalyptic number.

1455644145546 is an abundant number, since it is smaller than the sum of its proper divisors (1703081384154).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1455644145546 is a wasteful number, since it uses less digits than its factorization.

1455644145546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123843110 (or 123843107 counting only the distinct ones).

The product of its digits is 23040000, while the sum is 54.

The spelling of 1455644145546 in words is "one trillion, four hundred fifty-five billion, six hundred forty-four million, one hundred forty-five thousand, five hundred forty-six".