65698915932 has 288 divisors, whose sum is σ = 186464678400. Its totient is φ = 19378911744.

The previous prime is 65698915927. The next prime is 65698915937. The reversal of 65698915932 is 23951989656.

It is an interprime number because it is at equal distance from previous prime (65698915927) and next prime (65698915937).

It is a self number, because there is not a number n which added to its sum of digits gives 65698915932.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65698915937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 249805633 + ... + 249805895.

It is an arithmetic number, because the mean of its divisors is an integer number (647446800).

Almost surely, 2^65698915932 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 65698915932, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93232339200).

65698915932 is an abundant number, since it is smaller than the sum of its proper divisors (120765762468).

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

65698915932 is a wasteful number, since it uses less digits than its factorization.

65698915932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537 (or 532 counting only the distinct ones).

The product of its digits is 31492800, while the sum is 63.

The spelling of 65698915932 in words is "sixty-five billion, six hundred ninety-eight million, nine hundred fifteen thousand, nine hundred thirty-two".