65611632 has 40 divisors (see below), whose sum is σ = 169917696. Its totient is φ = 21816256.

The previous prime is 65611631. The next prime is 65611669. The reversal of 65611632 is 23611656.

It is a self number, because there is not a number n which added to its sum of digits gives 65611632.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65611631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20953 + ... + 23879.

Almost surely, 2^65611632 is an apocalyptic number.

It is an amenable number.

65611632 is an abundant number, since it is smaller than the sum of its proper divisors (104306064).

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

65611632 is a wasteful number, since it uses less digits than its factorization.

65611632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3405 (or 3399 counting only the distinct ones).

The product of its digits is 6480, while the sum is 30.

The square root of 65611632 is about 8100.1007401143. The cubic root of 65611632 is about 403.3297713108.

The spelling of 65611632 in words is "sixty-five million, six hundred eleven thousand, six hundred thirty-two".