20466887316 has 48 divisors (see below), whose sum is σ = 50590733760. Its totient is φ = 6417748480.

The previous prime is 20466887291. The next prime is 20466887351. The reversal of 20466887316 is 61378866402.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 397831 + ... + 446321.

It is an arithmetic number, because the mean of its divisors is an integer number (1053973620).

Almost surely, 2^20466887316 is an apocalyptic number.

It is an amenable number.

20466887316 is an abundant number, since it is smaller than the sum of its proper divisors (30123846444).

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

20466887316 is a wasteful number, since it uses less digits than its factorization.

20466887316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50584 (or 50582 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 51.

The spelling of 20466887316 in words is "twenty billion, four hundred sixty-six million, eight hundred eighty-seven thousand, three hundred sixteen".