51442544066040 has 96 divisors (see below), whose sum is σ = 168722105666400. Its totient is φ = 13592158421760.

The previous prime is 51442544066029. The next prime is 51442544066047. The reversal of 51442544066040 is 4066044524415.

51442544066040 is a `hidden beast` number, since 5 + 1 + 4 + 4 + 2 + 544 + 0 + 6 + 60 + 40 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51442544066047) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 655446796 + ... + 655525275.

It is an arithmetic number, because the mean of its divisors is an integer number (1757521934025).

Almost surely, 2^{51442544066040} is an apocalyptic number.

It is an amenable number.

51442544066040 is an abundant number, since it is smaller than the sum of its proper divisors (117279561600360).

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

51442544066040 is a wasteful number, since it uses less digits than its factorization.

51442544066040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1310972197 (or 1310972190 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 45.

The spelling of 51442544066040 in words is "fifty-one trillion, four hundred forty-two billion, five hundred forty-four million, sixty-six thousand, forty".