51374347352066 has 16 divisors (see below), whose sum is σ = 77101522142400. Its totient is φ = 25673843433168.

The previous prime is 51374347352039. The next prime is 51374347352093. The reversal of 51374347352066 is 66025374347315.

It is an interprime number because it is at equal distance from previous prime (51374347352039) and next prime (51374347352093).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28951331 + ... + 30674553.

It is an arithmetic number, because the mean of its divisors is an integer number (4818845133900).

Almost surely, 2^{51374347352066} is an apocalyptic number.

51374347352066 is a deficient number, since it is larger than the sum of its proper divisors (25727174790334).

51374347352066 is a wasteful number, since it uses less digits than its factorization.

51374347352066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1730953.

The product of its (nonzero) digits is 38102400, while the sum is 56.

The spelling of 51374347352066 in words is "fifty-one trillion, three hundred seventy-four billion, three hundred forty-seven million, three hundred fifty-two thousand, sixty-six".