20016132171550 has 48 divisors (see below), whose sum is σ = 38096894892672. Its totient is φ = 7820035624800.

The previous prime is 20016132171493. The next prime is 20016132171601. The reversal of 20016132171550 is 5517123161002.

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 in 23 ways as a sum of consecutive naturals, for example, 90677815 + ... + 90898285.

It is an arithmetic number, because the mean of its divisors is an integer number (793685310264).

Almost surely, 2^{20016132171550} is an apocalyptic number.

20016132171550 is a deficient number, since it is larger than the sum of its proper divisors (18080762721122).

20016132171550 is a wasteful number, since it uses less digits than its factorization.

20016132171550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262753 (or 262748 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 34.

The spelling of 20016132171550 in words is "twenty trillion, sixteen billion, one hundred thirty-two million, one hundred seventy-one thousand, five hundred fifty".