51102150000 has 240 divisors, whose sum is σ = 180013228416. Its totient is φ = 12388000000.

The previous prime is 51102149963. The next prime is 51102150031. The reversal of 51102150000 is 5120115.

It is a tau number, because it is divible by the number of its divisors (240).

It is a super-2 number, since 2×51102150000² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1634515 + ... + 1665485.

Almost surely, 2^51102150000 is an apocalyptic number.

51102150000 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 51102150000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90006614208).

51102150000 is an abundant number, since it is smaller than the sum of its proper divisors (128911078416).

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

51102150000 is a wasteful number, since it uses less digits than its factorization.

51102150000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31018 (or 30992 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 15.

Adding to 51102150000 its reverse (5120115), we get a palindrome (51107270115).

It can be divided in two parts, 51102 and 150000, that added together give a palindrome (201102).

The spelling of 51102150000 in words is "fifty-one billion, one hundred two million, one hundred fifty thousand".