51346215304065 has 48 divisors (see below), whose sum is σ = 101312374250880. Its totient is φ = 23812737527040.

The previous prime is 51346215304051. The next prime is 51346215304079. The reversal of 51346215304065 is 56040351264315.

It is a happy number.

51346215304065 is a `hidden beast` number, since 5 + 1 + 34 + 6 + 21 + 530 + 4 + 0 + 65 = 666.

It is an interprime number because it is at equal distance from previous prime (51346215304051) and next prime (51346215304079).

It is not a de Polignac number, because 51346215304065 - 2⁷ = 51346215303937 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 51346215304065.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2254982700 + ... + 2255005469.

It is an arithmetic number, because the mean of its divisors is an integer number (2110674463560).

Almost surely, 2^{51346215304065} is an apocalyptic number.

51346215304065 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

51346215304065 is a deficient number, since it is larger than the sum of its proper divisors (49966158946815).

51346215304065 is a wasteful number, since it uses less digits than its factorization.

51346215304065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4509988214 (or 4509988211 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 45.

The spelling of 51346215304065 in words is "fifty-one trillion, three hundred forty-six billion, two hundred fifteen million, three hundred four thousand, sixty-five".