63345136545 has 24 divisors (see below), whose sum is σ = 115577092800. Its totient is φ = 32005963296.

The previous prime is 63345136511. The next prime is 63345136567. The reversal of 63345136545 is 54563154336.

63345136545 is a `hidden beast` number, since 6 + 3 + 34 + 513 + 65 + 45 = 666.

It is not a de Polignac number, because 63345136545 - 2¹² = 63345132449 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 63345136545.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37043085 + ... + 37044794.

It is an arithmetic number, because the mean of its divisors is an integer number (4815712200).

Almost surely, 2^63345136545 is an apocalyptic number.

It is an amenable number.

63345136545 is a deficient number, since it is larger than the sum of its proper divisors (52231956255).

63345136545 is a wasteful number, since it uses less digits than its factorization.

63345136545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74087909 (or 74087906 counting only the distinct ones).

The product of its digits is 1944000, while the sum is 45.

It can be divided in two parts, 63345136 and 545, that added together give a square (63345681 = 7959²).

The spelling of 63345136545 in words is "sixty-three billion, three hundred forty-five million, one hundred thirty-six thousand, five hundred forty-five".