51005521015667 has 16 divisors (see below), whose sum is σ = 51591376452000. Its totient is φ = 50422974750720.

The previous prime is 51005521015651. The next prime is 51005521015681. The reversal of 51005521015667 is 76651012550015.

It is a cyclic number.

It is not a de Polignac number, because 51005521015667 - 2⁴ = 51005521015651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51005521015567) 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, 39355709 + ... + 40631057.

It is an arithmetic number, because the mean of its divisors is an integer number (3224461028250).

Almost surely, 2^{51005521015667} is an apocalyptic number.

51005521015667 is a deficient number, since it is larger than the sum of its proper divisors (585855436333).

51005521015667 is a wasteful number, since it uses less digits than its factorization.

51005521015667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1276646.

The product of its (nonzero) digits is 315000, while the sum is 44.

The spelling of 51005521015667 in words is "fifty-one trillion, five billion, five hundred twenty-one million, fifteen thousand, six hundred sixty-seven".