51665545410 has 64 divisors (see below), whose sum is σ = 131327868672. Its totient is φ = 12963424256.

The previous prime is 51665545387. The next prime is 51665545439. The reversal of 51665545410 is 1454556615.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2138659 + ... + 2162681.

It is an arithmetic number, because the mean of its divisors is an integer number (2051997948).

Almost surely, 2^51665545410 is an apocalyptic number.

51665545410 is an abundant number, since it is smaller than the sum of its proper divisors (79662323262).

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

51665545410 is a wasteful number, since it uses less digits than its factorization.

51665545410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28267.

The product of its (nonzero) digits is 360000, while the sum is 42.

The spelling of 51665545410 in words is "fifty-one billion, six hundred sixty-five million, five hundred forty-five thousand, four hundred ten".