64168528 has 40 divisors (see below), whose sum is σ = 130848768. Its totient is φ = 30425472.

The previous prime is 64168501. The next prime is 64168537. The reversal of 64168528 is 82586146.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46050 + ... + 47422.

Almost surely, 2^64168528 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 64168528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65424384).

64168528 is an abundant number, since it is smaller than the sum of its proper divisors (66680240).

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

64168528 is a wasteful number, since it uses less digits than its factorization.

64168528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1531 (or 1525 counting only the distinct ones).

The product of its digits is 92160, while the sum is 40.

The square root of 64168528 is about 8010.5260751089. The cubic root of 64168528 is about 400.3507922720.

It can be divided in two parts, 641 and 68528, that added together give a square (69169 = 263²).

The spelling of 64168528 in words is "sixty-four million, one hundred sixty-eight thousand, five hundred twenty-eight".