620546011680 has 576 divisors, whose sum is σ = 2370283388928. Its totient is φ = 135914526720.

The previous prime is 620546011661. The next prime is 620546011691. The reversal of 620546011680 is 86110645026.

It is a happy number.

It is a super-2 number, since 2×620546011680² (a number of 24 digits) contains 22 as substring.

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 95 ways as a sum of consecutive naturals, for example, 75095229 + ... + 75103491.

It is an arithmetic number, because the mean of its divisors is an integer number (4115075328).

Almost surely, 2^620546011680 is an apocalyptic number.

620546011680 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 620546011680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1185141694464).

620546011680 is an abundant number, since it is smaller than the sum of its proper divisors (1749737377248).

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

620546011680 is a wasteful number, since it uses less digits than its factorization.

620546011680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8429 (or 8414 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The spelling of 620546011680 in words is "six hundred twenty billion, five hundred forty-six million, eleven thousand, six hundred eighty".