16530070241621 has 8 divisors (see below), whose sum is σ = 16568873274240. Its totient is φ = 16491290781712.

The previous prime is 16530070241593. The next prime is 16530070241627. The reversal of 16530070241621 is 12614207003561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16530070241621 - 2²² = 16530066047317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16530070241627) 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, 4488665 + ... + 7294398.

It is an arithmetic number, because the mean of its divisors is an integer number (2071109159280).

Almost surely, 2^{16530070241621} is an apocalyptic number.

It is an amenable number.

16530070241621 is a deficient number, since it is larger than the sum of its proper divisors (38803032619).

16530070241621 is a wasteful number, since it uses less digits than its factorization.

16530070241621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11786355.

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 16530070241621 in words is "sixteen trillion, five hundred thirty billion, seventy million, two hundred forty-one thousand, six hundred twenty-one".