64546716 has 48 divisors (see below), whose sum is σ = 164052000. Its totient is φ = 19633152.

The previous prime is 64546697. The next prime is 64546733. The reversal of 64546716 is 61764546.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11560 + ... + 16208.

It is an arithmetic number, because the mean of its divisors is an integer number (3417750).

Almost surely, 2^64546716 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 64546716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82026000).

64546716 is an abundant number, since it is smaller than the sum of its proper divisors (99505284).

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

64546716 is a wasteful number, since it uses less digits than its factorization.

64546716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4758 (or 4756 counting only the distinct ones).

The product of its digits is 120960, while the sum is 39.

The square root of 64546716 is about 8034.0970867920. The cubic root of 64546716 is about 401.1357637163.

The spelling of 64546716 in words is "sixty-four million, five hundred forty-six thousand, seven hundred sixteen".