51066531445 has 16 divisors (see below), whose sum is σ = 62129773440. Its totient is φ = 40288373824.

The previous prime is 51066531409. The next prime is 51066531463. The reversal of 51066531445 is 54413566015.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 51066531445 - 2¹³ = 51066523253 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51066531398 and 51066531407.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120696 + ... + 341614.

It is an arithmetic number, because the mean of its divisors is an integer number (3883110840).

Almost surely, 2^51066531445 is an apocalyptic number.

It is an amenable number.

51066531445 is a deficient number, since it is larger than the sum of its proper divisors (11063241995).

51066531445 is a wasteful number, since it uses less digits than its factorization.

51066531445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221564.

The product of its (nonzero) digits is 216000, while the sum is 40.

The spelling of 51066531445 in words is "fifty-one billion, sixty-six million, five hundred thirty-one thousand, four hundred forty-five".