62681664240 has 640 divisors, whose sum is σ = 259183411200. Its totient is φ = 13755432960.

The previous prime is 62681664187. The next prime is 62681664263. The reversal of 62681664240 is 4246618626.

62681664240 is a `hidden beast` number, since 6 + 2 + 68 + 166 + 424 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

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 127 ways as a sum of consecutive naturals, for example, 9066385 + ... + 9073295.

It is an arithmetic number, because the mean of its divisors is an integer number (404974080).

Almost surely, 2^62681664240 is an apocalyptic number.

62681664240 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 62681664240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129591705600).

62681664240 is an abundant number, since it is smaller than the sum of its proper divisors (196501746960).

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

62681664240 is a wasteful number, since it uses less digits than its factorization.

62681664240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6982 (or 6970 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 45.

The spelling of 62681664240 in words is "sixty-two billion, six hundred eighty-one million, six hundred sixty-four thousand, two hundred forty".