64554351252 has 96 divisors (see below), whose sum is σ = 165362045184. Its totient is φ = 19537689600.

The previous prime is 64554351181. The next prime is 64554351259. The reversal of 64554351252 is 25215345546.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64554351259) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 341602 + ... + 495782.

It is an arithmetic number, because the mean of its divisors is an integer number (1722521304).

Almost surely, 2^64554351252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64554351252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82681022592).

64554351252 is an abundant number, since it is smaller than the sum of its proper divisors (100807693932).

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

64554351252 is a wasteful number, since it uses less digits than its factorization.

64554351252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154289 (or 154287 counting only the distinct ones).

The product of its digits is 720000, while the sum is 42.

Adding to 64554351252 its reverse (25215345546), we get a palindrome (89769696798).

The spelling of 64554351252 in words is "sixty-four billion, five hundred fifty-four million, three hundred fifty-one thousand, two hundred fifty-two".