53161920000 has 1000 divisors, whose sum is σ = 227378478096. Its totient is φ = 12109824000.

The previous prime is 53161919977. The next prime is 53161920011. The reversal of 53161920000 is 2916135.

It is a tau number, because it is divible by the number of its divisors (1000).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 99 ways as a sum of consecutive naturals, for example, 181439854 + ... + 181440146.

Almost surely, 2^53161920000 is an apocalyptic number.

53161920000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53161920000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113689239048).

53161920000 is an abundant number, since it is smaller than the sum of its proper divisors (174216558096).

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

53161920000 is an frugal number, since it uses more digits than its factorization.

53161920000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350 (or 310 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The spelling of 53161920000 in words is "fifty-three billion, one hundred sixty-one million, nine hundred twenty thousand".