51166064453664 has 24 divisors (see below), whose sum is σ = 134310919191120. Its totient is φ = 17055354817856.

The previous prime is 51166064453617. The next prime is 51166064453711. The reversal of 51166064453664 is 46635446066115.

It is an interprime number because it is at equal distance from previous prime (51166064453617) and next prime (51166064453711).

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 266489918934 + ... + 266489919125.

It is an arithmetic number, because the mean of its divisors is an integer number (5596288299630).

Almost surely, 2^{51166064453664} is an apocalyptic number.

It is an amenable number.

51166064453664 is an abundant number, since it is smaller than the sum of its proper divisors (83144854737456).

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

51166064453664 is a wasteful number, since it uses less digits than its factorization.

51166064453664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532979838072 (or 532979838064 counting only the distinct ones).

The product of its (nonzero) digits is 37324800, while the sum is 57.

The spelling of 51166064453664 in words is "fifty-one trillion, one hundred sixty-six billion, sixty-four million, four hundred fifty-three thousand, six hundred sixty-four".