65365036369920 has 4608 divisors, whose sum is σ = 298407894220800. Its totient is φ = 13488685056000.

The previous prime is 65365036369909. The next prime is 65365036369931. The reversal of 65365036369920 is 2996363056356.

65365036369920 is a `hidden beast` number, since 6 + 5 + 3 + 6 + 503 + 6 + 36 + 9 + 92 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (65365036369909) and next prime (65365036369931).

It is a tau number, because it is divible by the number of its divisors (4608).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 647178577870 + ... + 647178577970.

It is an arithmetic number, because the mean of its divisors is an integer number (64758657600).

Almost surely, 2^{65365036369920} is an apocalyptic number.

65365036369920 is a gapful number since it is divisible by the number (60) 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 65365036369920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149203947110400).

65365036369920 is an abundant number, since it is smaller than the sum of its proper divisors (233042857850880).

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

65365036369920 is a wasteful number, since it uses less digits than its factorization.

65365036369920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272 (or 239 counting only the distinct ones).

The product of its (nonzero) digits is 141717600, while the sum is 63.

The spelling of 65365036369920 in words is "sixty-five trillion, three hundred sixty-five billion, thirty-six million, three hundred sixty-nine thousand, nine hundred twenty".