20470169476 has 9 divisors (see below), whose sum is σ = 35823297349. Its totient is φ = 10234941664.

The previous prime is 20470169417. The next prime is 20470169497. The reversal of 20470169476 is 67496107402.

The square root of 20470169476 is 143074.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 7965562500 + 12504606976 = 89250^2 + 111824^2 .

It is a super-2 number, since 2×20470169476² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 250380 + ... + 321916.

Almost surely, 2^20470169476 is an apocalyptic number.

20470169476 is the 143074-th square number.

It is an amenable number.

20470169476 is a deficient number, since it is larger than the sum of its proper divisors (15353127873).

20470169476 is an frugal number, since it uses more digits than its factorization.

20470169476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143078 (or 71539 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 46.

The spelling of 20470169476 in words is "twenty billion, four hundred seventy million, one hundred sixty-nine thousand, four hundred seventy-six".