30653215161621 has 16 divisors (see below), whose sum is σ = 44736428352000. Its totient is φ = 18554279037120.

The previous prime is 30653215161563. The next prime is 30653215161629. The reversal of 30653215161621 is 12616151235603.

It is a happy number.

It is not a de Polignac number, because 30653215161621 - 2¹⁰ = 30653215160597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30653215161629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6442455621 + ... + 6442460378.

It is an arithmetic number, because the mean of its divisors is an integer number (2796026772000).

Almost surely, 2^{30653215161621} is an apocalyptic number.

It is an amenable number.

30653215161621 is a deficient number, since it is larger than the sum of its proper divisors (14083213190379).

30653215161621 is a wasteful number, since it uses less digits than its factorization.

30653215161621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12884916076.

The product of its (nonzero) digits is 194400, while the sum is 42.

The spelling of 30653215161621 in words is "thirty trillion, six hundred fifty-three billion, two hundred fifteen million, one hundred sixty-one thousand, six hundred twenty-one".