1620634030012 has 12 divisors (see below), whose sum is σ = 2836831420080. Its totient is φ = 810110767136.

The previous prime is 1620634029983. The next prime is 1620634030021. The reversal of 1620634030012 is 2100304360261.

It is a super-2 number, since 2×1620634030012² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 51544288 + ... + 51575719.

It is an arithmetic number, because the mean of its divisors is an integer number (236402618340).

Almost surely, 2^{1620634030012} is an apocalyptic number.

It is an amenable number.

1620634030012 is a deficient number, since it is larger than the sum of its proper divisors (1216197390068).

1620634030012 is a wasteful number, since it uses less digits than its factorization.

1620634030012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103123940 (or 103123938 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 1620634030012 its reverse (2100304360261), we get a palindrome (3720938390273).

The spelling of 1620634030012 in words is "one trillion, six hundred twenty billion, six hundred thirty-four million, thirty thousand, twelve".