65779525008 has 160 divisors (see below), whose sum is σ = 200454134400. Its totient is φ = 20581392384.

The previous prime is 65779525003. The next prime is 65779525013. The reversal of 65779525008 is 80052597756.

65779525008 is a `hidden beast` number, since 65 + 7 + 79 + 5 + 2 + 500 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (65779525003) and next prime (65779525013).

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

It is not an unprimeable number, because it can be changed into a prime (65779525003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2771560 + ... + 2795192.

It is an arithmetic number, because the mean of its divisors is an integer number (1252838340).

Almost surely, 2^65779525008 is an apocalyptic number.

65779525008 is a gapful number since it is divisible by the number (68) 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 65779525008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100227067200).

65779525008 is an abundant number, since it is smaller than the sum of its proper divisors (134674609392).

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

65779525008 is a wasteful number, since it uses less digits than its factorization.

65779525008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24046 (or 24034 counting only the distinct ones).

The product of its (nonzero) digits is 5292000, while the sum is 54.

The spelling of 65779525008 in words is "sixty-five billion, seven hundred seventy-nine million, five hundred twenty-five thousand, eight".