64553513436 has 30 divisors (see below), whose sum is σ = 168755636280. Its totient is φ = 21517837704.

The previous prime is 64553513413. The next prime is 64553513443. The reversal of 64553513436 is 63431535546.

64553513436 is a `hidden beast` number, since 6 + 4 + 553 + 51 + 3 + 43 + 6 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 64553513391 and 64553513400.

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 9 ways as a sum of consecutive naturals, for example, 99619296 + ... + 99619943.

It is an arithmetic number, because the mean of its divisors is an integer number (5625187876).

Almost surely, 2^64553513436 is an apocalyptic number.

It is an amenable number.

64553513436 is an abundant number, since it is smaller than the sum of its proper divisors (104202122844).

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

64553513436 is a wasteful number, since it uses less digits than its factorization.

64553513436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199239255 (or 199239244 counting only the distinct ones).

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

The spelling of 64553513436 in words is "sixty-four billion, five hundred fifty-three million, five hundred thirteen thousand, four hundred thirty-six".