620116681 has 8 divisors (see below), whose sum is σ = 629428320. Its totient is φ = 610870368.

The previous prime is 620116621. The next prime is 620116687. The reversal of 620116681 is 186611026.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 620116681 - 2⁹ = 620116169 is a prime.

It is a super-2 number, since 2×620116681² = 769089396108911522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (620116687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2965 + ... + 35341.

It is an arithmetic number, because the mean of its divisors is an integer number (78678540).

Almost surely, 2^620116681 is an apocalyptic number.

It is an amenable number.

620116681 is a deficient number, since it is larger than the sum of its proper divisors (9311639).

620116681 is a wasteful number, since it uses less digits than its factorization.

620116681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32663.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 620116681 is about 24902.1420966149. The cubic root of 620116681 is about 852.7553864300.

The spelling of 620116681 in words is "six hundred twenty million, one hundred sixteen thousand, six hundred eighty-one".