51205164650101 has 16 divisors (see below), whose sum is σ = 63841783799808. Its totient is φ = 39899141722800.

The previous prime is 51205164650051. The next prime is 51205164650131. The reversal of 51205164650101 is 10105646150215.

It is a cyclic number.

It is not a de Polignac number, because 51205164650101 - 2⁷ = 51205164649973 is a prime.

It is a super-3 number, since 3×51205164650101³ (a number of 42 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51205164650131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5079385 + ... + 11323006.

It is an arithmetic number, because the mean of its divisors is an integer number (3990111487488).

Almost surely, 2^{51205164650101} is an apocalyptic number.

It is an amenable number.

51205164650101 is a deficient number, since it is larger than the sum of its proper divisors (12636619149707).

51205164650101 is a wasteful number, since it uses less digits than its factorization.

51205164650101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16442952.

The product of its (nonzero) digits is 36000, while the sum is 37.

The spelling of 51205164650101 in words is "fifty-one trillion, two hundred five billion, one hundred sixty-four million, six hundred fifty thousand, one hundred one".