65680461480 has 64 divisors (see below), whose sum is σ = 197909490240. Its totient is φ = 17437624832.

The previous prime is 65680461443. The next prime is 65680461481. The reversal of 65680461480 is 8416408656.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (65680461481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1178349 + ... + 1232828.

It is an arithmetic number, because the mean of its divisors is an integer number (3092335785).

Almost surely, 2^65680461480 is an apocalyptic number.

65680461480 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

65680461480 is an abundant number, since it is smaller than the sum of its proper divisors (132229028760).

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

65680461480 is a wasteful number, since it uses less digits than its factorization.

65680461480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2411418 (or 2411414 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 48.

The spelling of 65680461480 in words is "sixty-five billion, six hundred eighty million, four hundred sixty-one thousand, four hundred eighty".