51611445225405 has 96 divisors (see below), whose sum is σ = 98713181129472. Its totient is φ = 24783454080000.

The previous prime is 51611445225331. The next prime is 51611445225413. The reversal of 51611445225405 is 50452254411615.

51611445225405 is a `hidden beast` number, since 5 + 1 + 6 + 1 + 14 + 4 + 5 + 225 + 405 = 666.

It is not a de Polignac number, because 51611445225405 - 2⁸ = 51611445225149 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 108246280 + ... + 108722030.

It is an arithmetic number, because the mean of its divisors is an integer number (1028262303432).

Almost surely, 2^{51611445225405} is an apocalyptic number.

It is an amenable number.

51611445225405 is a deficient number, since it is larger than the sum of its proper divisors (47101735904067).

51611445225405 is a wasteful number, since it uses less digits than its factorization.

51611445225405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480339 (or 480336 counting only the distinct ones).

The product of its (nonzero) digits is 960000, while the sum is 45.

The spelling of 51611445225405 in words is "fifty-one trillion, six hundred eleven billion, four hundred forty-five million, two hundred twenty-five thousand, four hundred five".