620998147671 has 16 divisors (see below), whose sum is σ = 903289743360. Its totient is φ = 376354301120.

The previous prime is 620998147667. The next prime is 620998147673. The reversal of 620998147671 is 176741899026.

It is a cyclic number.

It is not a de Polignac number, because 620998147671 - 2² = 620998147667 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620998147673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1555210 + ... + 1913288.

It is an arithmetic number, because the mean of its divisors is an integer number (56455608960).

Almost surely, 2^620998147671 is an apocalyptic number.

620998147671 is a deficient number, since it is larger than the sum of its proper divisors (282291595689).

620998147671 is a wasteful number, since it uses less digits than its factorization.

620998147671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410646.

The product of its (nonzero) digits is 9144576, while the sum is 60.

The spelling of 620998147671 in words is "six hundred twenty billion, nine hundred ninety-eight million, one hundred forty-seven thousand, six hundred seventy-one".