30450221121566 has 4 divisors (see below), whose sum is σ = 45675331682352. Its totient is φ = 15225110560782.

The previous prime is 30450221121497. The next prime is 30450221121571. The reversal of 30450221121566 is 66512112205403.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

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 as a sum of consecutive naturals, namely, 7612555280390 + ... + 7612555280393.

It is an arithmetic number, because the mean of its divisors is an integer number (11418832920588).

Almost surely, 2^{30450221121566} is an apocalyptic number.

30450221121566 is a deficient number, since it is larger than the sum of its proper divisors (15225110560786).

30450221121566 is a wasteful number, since it uses less digits than its factorization.

30450221121566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15225110560785.

The product of its (nonzero) digits is 86400, while the sum is 38.

Adding to 30450221121566 its reverse (66512112205403), we get a palindrome (96962333326969).

The spelling of 30450221121566 in words is "thirty trillion, four hundred fifty billion, two hundred twenty-one million, one hundred twenty-one thousand, five hundred sixty-six".