20116755501450 has 24 divisors (see below), whose sum is σ = 49889553643968. Its totient is φ = 5364468133680.

The previous prime is 20116755501439. The next prime is 20116755501463. The reversal of 20116755501450 is 5410555761102.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67055851522 + ... + 67055851821.

It is an arithmetic number, because the mean of its divisors is an integer number (2078731401832).

Almost surely, 2^{20116755501450} is an apocalyptic number.

20116755501450 is an abundant number, since it is smaller than the sum of its proper divisors (29772798142518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20116755501450 is a wasteful number, since it uses less digits than its factorization.

20116755501450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134111703358 (or 134111703353 counting only the distinct ones).

The product of its (nonzero) digits is 210000, while the sum is 42.

The spelling of 20116755501450 in words is "twenty trillion, one hundred sixteen billion, seven hundred fifty-five million, five hundred one thousand, four hundred fifty".