645453303415 has 8 divisors (see below), whose sum is σ = 808219788768. Its totient is φ = 493912092960.

The previous prime is 645453303403. The next prime is 645453303433. The reversal of 645453303415 is 514303354546.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-645453303415 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2806318596 + ... + 2806318825.

It is an arithmetic number, because the mean of its divisors is an integer number (101027473596).

Almost surely, 2^645453303415 is an apocalyptic number.

645453303415 is a deficient number, since it is larger than the sum of its proper divisors (162766485353).

645453303415 is a wasteful number, since it uses less digits than its factorization.

645453303415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5612637449.

The product of its (nonzero) digits is 1296000, while the sum is 43.

The spelling of 645453303415 in words is "six hundred forty-five billion, four hundred fifty-three million, three hundred three thousand, four hundred fifteen".