1620330471686 has 16 divisors (see below), whose sum is σ = 2579578812000. Its totient is φ = 760697266560.

The previous prime is 1620330471649. The next prime is 1620330471707. The reversal of 1620330471686 is 6861740330261.

It is a self number, because there is not a number n which added to its sum of digits gives 1620330471686.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56585186 + ... + 56613813.

It is an arithmetic number, because the mean of its divisors is an integer number (161223675750).

Almost surely, 2^{1620330471686} is an apocalyptic number.

1620330471686 is a deficient number, since it is larger than the sum of its proper divisors (959248340314).

1620330471686 is a wasteful number, since it uses less digits than its factorization.

1620330471686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113199439.

The product of its (nonzero) digits is 870912, while the sum is 47.

The spelling of 1620330471686 in words is "one trillion, six hundred twenty billion, three hundred thirty million, four hundred seventy-one thousand, six hundred eighty-six".