620730898156 has 24 divisors (see below), whose sum is σ = 1092412346480. Its totient is φ = 308613499200.

The previous prime is 620730898121. The next prime is 620730898163. The reversal of 620730898156 is 651898037026.

It is a junction number, because it is equal to n+sod(n) for n = 620730898097 and 620730898106.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6534730 + ... + 6629038.

Almost surely, 2^620730898156 is an apocalyptic number.

It is an amenable number.

620730898156 is a deficient number, since it is larger than the sum of its proper divisors (471681448324).

620730898156 is a wasteful number, since it uses less digits than its factorization.

620730898156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103585 (or 103583 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 55.

The spelling of 620730898156 in words is "six hundred twenty billion, seven hundred thirty million, eight hundred ninety-eight thousand, one hundred fifty-six".