51066516354 has 16 divisors (see below), whose sum is σ = 116723466048. Its totient is φ = 14590433232.

The previous prime is 51066516331. The next prime is 51066516367. The reversal of 51066516354 is 45361566015.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 1215869437 = 51066516354 / (5 + 1 + 0 + 6 + 6 + 5 + 1 + 6 + 3 + 5 + 4).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 607934677 + ... + 607934760.

It is an arithmetic number, because the mean of its divisors is an integer number (7295216628).

Almost surely, 2^51066516354 is an apocalyptic number.

51066516354 is an abundant number, since it is smaller than the sum of its proper divisors (65656949694).

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

51066516354 is a wasteful number, since it uses less digits than its factorization.

51066516354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1215869449.

The product of its (nonzero) digits is 324000, while the sum is 42.

The spelling of 51066516354 in words is "fifty-one billion, sixty-six million, five hundred sixteen thousand, three hundred fifty-four".