51464588142660 has 192 divisors, whose sum is σ = 179797597378560. Its totient is φ = 10685642849280.

The previous prime is 51464588142601. The next prime is 51464588142683. The reversal of 51464588142660 is 6624188546415.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a junction number, because it is equal to n+sod(n) for n = 51464588142594 and 51464588142603.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1634187 + ... + 10276173.

It is an arithmetic number, because the mean of its divisors is an integer number (936445819680).

Almost surely, 2^{51464588142660} 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 51464588142660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89898798689280).

51464588142660 is an abundant number, since it is smaller than the sum of its proper divisors (128333009235900).

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

51464588142660 is a wasteful number, since it uses less digits than its factorization.

51464588142660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8643306 (or 8643304 counting only the distinct ones).

The product of its (nonzero) digits is 44236800, while the sum is 60.

The spelling of 51464588142660 in words is "fifty-one trillion, four hundred sixty-four billion, five hundred eighty-eight million, one hundred forty-two thousand, six hundred sixty".