65520514107 has 24 divisors (see below), whose sum is σ = 96206073600. Its totient is φ = 42959957040.

The previous prime is 65520514099. The next prime is 65520514121. The reversal of 65520514107 is 70141502556.

It is not a de Polignac number, because 65520514107 - 2³ = 65520514099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65520514177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 294394 + ... + 466592.

It is an arithmetic number, because the mean of its divisors is an integer number (4008586400).

Almost surely, 2^65520514107 is an apocalyptic number.

65520514107 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

65520514107 is a deficient number, since it is larger than the sum of its proper divisors (30685559493).

65520514107 is a wasteful number, since it uses less digits than its factorization.

65520514107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172903 (or 172900 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 36.

The spelling of 65520514107 in words is "sixty-five billion, five hundred twenty million, five hundred fourteen thousand, one hundred seven".