20005216167476 has 6 divisors (see below), whose sum is σ = 35009128293090. Its totient is φ = 10002608083736.

The previous prime is 20005216167467. The next prime is 20005216167551. The reversal of 20005216167476 is 67476161250002.

It can be written as a sum of positive squares in only one way, i.e., 18097707139600 + 1907509027876 = 4254140^2 + 1381126^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20005216167476.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2500652020931 + ... + 2500652020938.

It is an arithmetic number, because the mean of its divisors is an integer number (5834854715515).

Almost surely, 2^{20005216167476} is an apocalyptic number.

It is an amenable number.

20005216167476 is a deficient number, since it is larger than the sum of its proper divisors (15003912125614).

20005216167476 is a wasteful number, since it uses less digits than its factorization.

20005216167476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5001304041873 (or 5001304041871 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 47.

The spelling of 20005216167476 in words is "twenty trillion, five billion, two hundred sixteen million, one hundred sixty-seven thousand, four hundred seventy-six".