65896099938 has 96 divisors (see below), whose sum is σ = 152755739136. Its totient is φ = 21274576128.

The previous prime is 65896099859. The next prime is 65896099949. The reversal of 65896099938 is 83999069856.

65896099938 is a `hidden beast` number, since 6 + 5 + 8 + 9 + 609 + 9 + 9 + 3 + 8 = 666.

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, 4001770 + ... + 4018202.

It is an arithmetic number, because the mean of its divisors is an integer number (1591205616).

Almost surely, 2^65896099938 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65896099938, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76377869568).

65896099938 is an abundant number, since it is smaller than the sum of its proper divisors (86859639198).

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

65896099938 is a wasteful number, since it uses less digits than its factorization.

65896099938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16710 (or 16698 counting only the distinct ones).

The product of its (nonzero) digits is 226748160, while the sum is 72.

The spelling of 65896099938 in words is "sixty-five billion, eight hundred ninety-six million, ninety-nine thousand, nine hundred thirty-eight".