65555103057 has 4 divisors (see below), whose sum is σ = 87406804080. Its totient is φ = 43703402036.

The previous prime is 65555103023. The next prime is 65555103149. The reversal of 65555103057 is 75030155556.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 65555103057 - 2¹⁰ = 65555102033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65555101057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10925850507 + ... + 10925850512.

It is an arithmetic number, because the mean of its divisors is an integer number (21851701020).

Almost surely, 2^65555103057 is an apocalyptic number.

It is an amenable number.

65555103057 is a deficient number, since it is larger than the sum of its proper divisors (21851701023).

65555103057 is a wasteful number, since it uses less digits than its factorization.

65555103057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21851701022.

The product of its (nonzero) digits is 393750, while the sum is 42.

The spelling of 65555103057 in words is "sixty-five billion, five hundred fifty-five million, one hundred three thousand, fifty-seven".