445404566614455 has 40 divisors (see below), whose sum is σ = 912490202085792. Its totient is φ = 203613516165312.

The previous prime is 445404566614421. The next prime is 445404566614481. The reversal of 445404566614455 is 554416665404544.

It is not a de Polignac number, because 445404566614455 - 2¹¹ = 445404566612407 is a prime.

It is a super-2 number, since 2×445404566614455² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 445404566614392 and 445404566614401.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 78554594452 + ... + 78554600121.

Almost surely, 2^{445404566614455} is an apocalyptic number.

445404566614455 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

445404566614455 is an abundant number, since it is smaller than the sum of its proper divisors (467085635471337).

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

445404566614455 is a wasteful number, since it uses less digits than its factorization.

445404566614455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157109194597 (or 157109194588 counting only the distinct ones).

The product of its (nonzero) digits is 552960000, while the sum is 63.

The spelling of 445404566614455 in words is "four hundred forty-five trillion, four hundred four billion, five hundred sixty-six million, six hundred fourteen thousand, four hundred fifty-five".