1620983970212 has 24 divisors (see below), whose sum is σ = 2855914588800. Its totient is φ = 805025811296.

The previous prime is 1620983970211. The next prime is 1620983970223. The reversal of 1620983970212 is 2120793890261.

It is not an unprimeable number, because it can be changed into a prime (1620983970211) 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, 1807538 + ... + 2551305.

It is an arithmetic number, because the mean of its divisors is an integer number (118996441200).

Almost surely, 2^{1620983970212} is an apocalyptic number.

It is an amenable number.

1620983970212 is a deficient number, since it is larger than the sum of its proper divisors (1234930618588).

1620983970212 is a wasteful number, since it uses less digits than its factorization.

1620983970212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4359475 (or 4359473 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 50.

The spelling of 1620983970212 in words is "one trillion, six hundred twenty billion, nine hundred eighty-three million, nine hundred seventy thousand, two hundred twelve".