65500015155015 has 32 divisors (see below), whose sum is σ = 126075217144320. Its totient is φ = 28366923855744.

The previous prime is 65500015155011. The next prime is 65500015155089. The reversal of 65500015155015 is 51055151000556.

It is not a de Polignac number, because 65500015155015 - 2² = 65500015155011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65500015155011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16416041904 + ... + 16416045893.

It is an arithmetic number, because the mean of its divisors is an integer number (3939850535760).

Almost surely, 2^{65500015155015} is an apocalyptic number.

65500015155015 is a deficient number, since it is larger than the sum of its proper divisors (60575201989305).

65500015155015 is a wasteful number, since it uses less digits than its factorization.

65500015155015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32832087831.

The product of its (nonzero) digits is 93750, while the sum is 39.

The spelling of 65500015155015 in words is "sixty-five trillion, five hundred billion, fifteen million, one hundred fifty-five thousand, fifteen".