51060011650065 has 64 divisors (see below), whose sum is σ = 99120788582400. Its totient is φ = 24732541425600.

The previous prime is 51060011650061. The next prime is 51060011650127. The reversal of 51060011650065 is 56005611006015.

It is not a de Polignac number, because 51060011650065 - 2² = 51060011650061 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51060011650061) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15003691 + ... + 18089520.

It is an arithmetic number, because the mean of its divisors is an integer number (1548762321600).

Almost surely, 2^{51060011650065} is an apocalyptic number.

51060011650065 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

51060011650065 is a deficient number, since it is larger than the sum of its proper divisors (48060776932335).

51060011650065 is a wasteful number, since it uses less digits than its factorization.

51060011650065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33094275 (or 33094269 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The spelling of 51060011650065 in words is "fifty-one trillion, sixty billion, eleven million, six hundred fifty thousand, sixty-five".