53773443216 has 160 divisors (see below), whose sum is σ = 163702736640. Its totient is φ = 16863897600.

The previous prime is 53773443209. The next prime is 53773443281. The reversal of 53773443216 is 61234437735.

53773443216 is a `hidden beast` number, since 537 + 73 + 4 + 4 + 32 + 16 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 561736 + ... + 650456.

It is an arithmetic number, because the mean of its divisors is an integer number (1023142104).

Almost surely, 2^53773443216 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 53773443216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81851368320).

53773443216 is an abundant number, since it is smaller than the sum of its proper divisors (109929293424).

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

53773443216 is a wasteful number, since it uses less digits than its factorization.

53773443216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88822 (or 88810 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 45.

The spelling of 53773443216 in words is "fifty-three billion, seven hundred seventy-three million, four hundred forty-three thousand, two hundred sixteen".