51551000160 has 96 divisors (see below), whose sum is σ = 177148000512. Its totient is φ = 12497210880.

The previous prime is 51551000131. The next prime is 51551000161. The reversal of 51551000160 is 6100015515.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 51551000160.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51551000161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4876444 + ... + 4887003.

It is an arithmetic number, because the mean of its divisors is an integer number (1845291672).

Almost surely, 2^51551000160 is an apocalyptic number.

It is an amenable number.

51551000160 is an abundant number, since it is smaller than the sum of its proper divisors (125597000352).

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

51551000160 is a wasteful number, since it uses less digits than its factorization.

51551000160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9763476 (or 9763468 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 24.

Adding to 51551000160 its reverse (6100015515), we get a palindrome (57651015675).

The spelling of 51551000160 in words is "fifty-one billion, five hundred fifty-one million, one hundred sixty", and thus it is an aban number.