445154565451545 has 80 divisors (see below), whose sum is σ = 805318984683840. Its totient is φ = 235232593257600.

The previous prime is 445154565451537. The next prime is 445154565451567. The reversal of 445154565451545 is 545154565451544.

It is a happy number.

445154565451545 is a `hidden beast` number, since 4 + 4 + 5 + 1 + 5 + 45 + 6 + 5 + 45 + 1 + 545 = 666.

It is not a de Polignac number, because 445154565451545 - 2³ = 445154565451537 is a prime.

It is a super-2 number, since 2×445154565451545² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2996973930 + ... + 2997122460.

It is an arithmetic number, because the mean of its divisors is an integer number (10066487308548).

Almost surely, 2^{445154565451545} is an apocalyptic number.

445154565451545 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

445154565451545 is a deficient number, since it is larger than the sum of its proper divisors (360164419232295).

445154565451545 is a wasteful number, since it uses less digits than its factorization.

445154565451545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216548 (or 216539 counting only the distinct ones).

The product of its digits is 480000000, while the sum is 63.

Subtracting 445154565451545 from its reverse (545154565451544), we obtain a palindrome (99999999999999).

The spelling of 445154565451545 in words is "four hundred forty-five trillion, one hundred fifty-four billion, five hundred sixty-five million, four hundred fifty-one thousand, five hundred forty-five".