65105412603 has 32 divisors (see below), whose sum is σ = 108279790080. Its totient is φ = 33804552960.

The previous prime is 65105412551. The next prime is 65105412607. The reversal of 65105412603 is 30621450156.

It is not a de Polignac number, because 65105412603 - 2⁸ = 65105412347 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (65105412607) 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, 415101 + ... + 550017.

It is an arithmetic number, because the mean of its divisors is an integer number (3383743440).

Almost surely, 2^65105412603 is an apocalyptic number.

65105412603 is a deficient number, since it is larger than the sum of its proper divisors (43174377477).

65105412603 is a wasteful number, since it uses less digits than its factorization.

65105412603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137027.

The product of its (nonzero) digits is 21600, while the sum is 33.

Adding to 65105412603 its reverse (30621450156), we get a palindrome (95726862759).

The spelling of 65105412603 in words is "sixty-five billion, one hundred five million, four hundred twelve thousand, six hundred three".