20117621522030 has 64 divisors (see below), whose sum is σ = 39814788764160. Its totient is φ = 7284746772864.

The previous prime is 20117621521967. The next prime is 20117621522059. The reversal of 20117621522030 is 3022512671102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2048177 + ... + 6665603.

It is an arithmetic number, because the mean of its divisors is an integer number (622106074440).

Almost surely, 2^{20117621522030} is an apocalyptic number.

20117621522030 is a deficient number, since it is larger than the sum of its proper divisors (19697167242130).

20117621522030 is a wasteful number, since it uses less digits than its factorization.

20117621522030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4618473.

The product of its (nonzero) digits is 10080, while the sum is 32.

The spelling of 20117621522030 in words is "twenty trillion, one hundred seventeen billion, six hundred twenty-one million, five hundred twenty-two thousand, thirty".