65025651636 has 96 divisors (see below), whose sum is σ = 184309708800. Its totient is φ = 19662017760.

The previous prime is 65025651631. The next prime is 65025651637. The reversal of 65025651636 is 63615652056.

65025651636 is a `hidden beast` number, since 6 + 5 + 0 + 2 + 5 + 6 + 5 + 1 + 636 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 65025651591 and 65025651600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65025651631) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 490935 + ... + 609153.

It is an arithmetic number, because the mean of its divisors is an integer number (1919892800).

Almost surely, 2^65025651636 is an apocalyptic number.

65025651636 is a gapful number since it is divisible by the number (66) 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 65025651636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92154854400).

65025651636 is an abundant number, since it is smaller than the sum of its proper divisors (119284057164).

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

65025651636 is a wasteful number, since it uses less digits than its factorization.

65025651636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118706 (or 118698 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 45.

The spelling of 65025651636 in words is "sixty-five billion, twenty-five million, six hundred fifty-one thousand, six hundred thirty-six".