51482666664 has 192 divisors, whose sum is σ = 169282612800. Its totient is φ = 14400650880.

The previous prime is 51482666659. The next prime is 51482666671. The reversal of 51482666664 is 46666628415.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 51482666664.

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, 264007 + ... + 415529.

It is an arithmetic number, because the mean of its divisors is an integer number (881680275).

Almost surely, 2^51482666664 is an apocalyptic number.

51482666664 is a gapful number since it is divisible by the number (54) 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 51482666664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84641306400).

51482666664 is an abundant number, since it is smaller than the sum of its proper divisors (117799946136).

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

51482666664 is a wasteful number, since it uses less digits than its factorization.

51482666664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151573 (or 151552 counting only the distinct ones).

The product of its digits is 9953280, while the sum is 54.

The spelling of 51482666664 in words is "fifty-one billion, four hundred eighty-two million, six hundred sixty-six thousand, six hundred sixty-four".