63453516165 has 48 divisors (see below), whose sum is σ = 119596643712. Its totient is φ = 30935336832.

The previous prime is 63453516101. The next prime is 63453516229. The reversal of 63453516165 is 56161535436.

It is a happy number.

63453516165 is a `hidden beast` number, since 634 + 5 + 3 + 5 + 1 + 6 + 1 + 6 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (63453516101) and next prime (63453516229).

It is not a de Polignac number, because 63453516165 - 2⁶ = 63453516101 is a prime.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 63453516165.

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 47 ways as a sum of consecutive naturals, for example, 466287 + ... + 586796.

It is an arithmetic number, because the mean of its divisors is an integer number (2491596744).

Almost surely, 2^63453516165 is an apocalyptic number.

63453516165 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

63453516165 is a deficient number, since it is larger than the sum of its proper divisors (56143127547).

63453516165 is a wasteful number, since it uses less digits than its factorization.

63453516165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053210 (or 1053207 counting only the distinct ones).

The product of its digits is 972000, while the sum is 45.

The spelling of 63453516165 in words is "sixty-three billion, four hundred fifty-three million, five hundred sixteen thousand, one hundred sixty-five".