20416548357772 has 96 divisors (see below), whose sum is σ = 41923942752384. Its totient is φ = 8517183436800.

The previous prime is 20416548357763. The next prime is 20416548357823. The reversal of 20416548357772 is 27775384561402.

It is a super-2 number, since 2×20416548357772² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20416548357772.

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 31 ways as a sum of consecutive naturals, for example, 1219545322 + ... + 1219562062.

It is an arithmetic number, because the mean of its divisors is an integer number (436707737004).

Almost surely, 2^{20416548357772} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20416548357772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20961971376192).

20416548357772 is an abundant number, since it is smaller than the sum of its proper divisors (21507394394612).

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

20416548357772 is a wasteful number, since it uses less digits than its factorization.

20416548357772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19139 (or 19137 counting only the distinct ones).

The product of its (nonzero) digits is 79027200, while the sum is 61.

The spelling of 20416548357772 in words is "twenty trillion, four hundred sixteen billion, five hundred forty-eight million, three hundred fifty-seven thousand, seven hundred seventy-two".