20160223476 has 12 divisors (see below), whose sum is σ = 47040521472. Its totient is φ = 6720074488.

The previous prime is 20160223469. The next prime is 20160223507. The reversal of 20160223476 is 67432206102.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×20160223476² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 840009300 + ... + 840009323.

It is an arithmetic number, because the mean of its divisors is an integer number (3920043456).

Almost surely, 2^20160223476 is an apocalyptic number.

It is an amenable number.

20160223476 is an abundant number, since it is smaller than the sum of its proper divisors (26880297996).

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

20160223476 is a wasteful number, since it uses less digits than its factorization.

20160223476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1680018630 (or 1680018628 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

Adding to 20160223476 its reverse (67432206102), we get a palindrome (87592429578).

The spelling of 20160223476 in words is "twenty billion, one hundred sixty million, two hundred twenty-three thousand, four hundred seventy-six".