65100006081 has 48 divisors (see below), whose sum is σ = 107236172160. Its totient is φ = 37670645760.

The previous prime is 65100006079. The next prime is 65100006119. The reversal of 65100006081 is 18060000156.

65100006081 is a `hidden beast` number, since 6 + 51 + 0 + 0 + 0 + 0 + 608 + 1 = 666.

It is not a de Polignac number, because 65100006081 - 2¹ = 65100006079 is a prime.

It is a super-2 number, since 2×65100006081² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65100006061) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1242625 + ... + 1293953.

It is an arithmetic number, because the mean of its divisors is an integer number (2234086920).

Almost surely, 2^65100006081 is an apocalyptic number.

It is an amenable number.

65100006081 is a deficient number, since it is larger than the sum of its proper divisors (42136166079).

65100006081 is a wasteful number, since it uses less digits than its factorization.

65100006081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51926 (or 51923 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The spelling of 65100006081 in words is "sixty-five billion, one hundred million, six thousand, eighty-one".