65501601005 has 16 divisors (see below), whose sum is σ = 79525586160. Its totient is φ = 51786104832.

The previous prime is 65501600999. The next prime is 65501601043. The reversal of 65501601005 is 50010610556.

65501601005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 3895382569 + 61606218436 = 62413^2 + 248206^2 .

It is a cyclic number.

It is not a de Polignac number, because 65501601005 - 2¹⁶ = 65501535469 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 861077 + ... + 934053.

It is an arithmetic number, because the mean of its divisors is an integer number (4970349135).

Almost surely, 2^65501601005 is an apocalyptic number.

It is an amenable number.

65501601005 is a deficient number, since it is larger than the sum of its proper divisors (14023985155).

65501601005 is a wasteful number, since it uses less digits than its factorization.

65501601005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75088.

The product of its (nonzero) digits is 4500, while the sum is 29.

The spelling of 65501601005 in words is "sixty-five billion, five hundred one million, six hundred one thousand, five".