1680220154306 has 16 divisors (see below), whose sum is σ = 2531954624640. Its totient is φ = 836237072880.

The previous prime is 1680220154303. The next prime is 1680220154381. The reversal of 1680220154306 is 6034510220861.

It is a self number, because there is not a number n which added to its sum of digits gives 1680220154306.

It is not an unprimeable number, because it can be changed into a prime (1680220154303) 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, 1436645 + ... + 2329031.

It is an arithmetic number, because the mean of its divisors is an integer number (158247164040).

Almost surely, 2^{1680220154306} is an apocalyptic number.

1680220154306 is a deficient number, since it is larger than the sum of its proper divisors (851734470334).

1680220154306 is a wasteful number, since it uses less digits than its factorization.

1680220154306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896729.

The product of its (nonzero) digits is 69120, while the sum is 38.

The spelling of 1680220154306 in words is "one trillion, six hundred eighty billion, two hundred twenty million, one hundred fifty-four thousand, three hundred six".