65632799232 has 1920 divisors, whose sum is σ = 288269549568. Its totient is φ = 14332723200.

The previous prime is 65632799231. The next prime is 65632799237. The reversal of 65632799232 is 23299723656.

It is a happy number.

65632799232 is a `hidden beast` number, since 6 + 563 + 2 + 79 + 9 + 2 + 3 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

Its product of digits (7348320) is a multiple of the sum of its prime divisors (84).

It is not an unprimeable number, because it can be changed into a prime (65632799231) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 2117187057 + ... + 2117187087.

Almost surely, 2^65632799232 is an apocalyptic number.

65632799232 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65632799232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144134774784).

65632799232 is an abundant number, since it is smaller than the sum of its proper divisors (222636750336).

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

65632799232 is a wasteful number, since it uses less digits than its factorization.

65632799232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112 (or 84 counting only the distinct ones).

The product of its digits is 7348320, while the sum is 54.

The spelling of 65632799232 in words is "sixty-five billion, six hundred thirty-two million, seven hundred ninety-nine thousand, two hundred thirty-two".