51065170620645 has 8 divisors (see below), whose sum is σ = 81704272993056. Its totient is φ = 27234757664336.

The previous prime is 51065170620613. The next prime is 51065170620707. The reversal of 51065170620645 is 54602607156015.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51065170620645 - 2⁵ = 51065170620613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51065170620594 and 51065170620603.

It is a congruent number.

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, 1702172354007 + ... + 1702172354036.

It is an arithmetic number, because the mean of its divisors is an integer number (10213034124132).

Almost surely, 2^{51065170620645} is an apocalyptic number.

It is an amenable number.

51065170620645 is a deficient number, since it is larger than the sum of its proper divisors (30639102372411).

51065170620645 is a wasteful number, since it uses less digits than its factorization.

51065170620645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3404344708051.

The product of its (nonzero) digits is 1512000, while the sum is 48.

The spelling of 51065170620645 in words is "fifty-one trillion, sixty-five billion, one hundred seventy million, six hundred twenty thousand, six hundred forty-five".