64065534 has 96 divisors (see below), whose sum is σ = 150522624. Its totient is φ = 18120960.

The previous prime is 64065527. The next prime is 64065541. The reversal of 64065534 is 43556046.

It is an interprime number because it is at equal distance from previous prime (64065527) and next prime (64065541).

It is a junction number, because it is equal to n+sod(n) for n = 64065495 and 64065504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 956169 + ... + 956235.

It is an arithmetic number, because the mean of its divisors is an integer number (1567944).

Almost surely, 2^64065534 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64065534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75261312).

64065534 is an abundant number, since it is smaller than the sum of its proper divisors (86457090).

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

64065534 is a wasteful number, since it uses less digits than its factorization.

64065534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162 (or 149 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 33.

The square root of 64065534 is about 8004.0948270245. The cubic root of 64065534 is about 400.1364825926.

The spelling of 64065534 in words is "sixty-four million, sixty-five thousand, five hundred thirty-four".