65055061603 has 4 divisors (see below), whose sum is σ = 74348641840. Its totient is φ = 55761481368.

The previous prime is 65055061601. The next prime is 65055061607. The reversal of 65055061603 is 30616055056.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65055061603 - 2¹ = 65055061601 is a prime.

It is a super-2 number, since 2×65055061603² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65055061601) 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, 4646790108 + ... + 4646790121.

It is an arithmetic number, because the mean of its divisors is an integer number (18587160460).

Almost surely, 2^65055061603 is an apocalyptic number.

65055061603 is a deficient number, since it is larger than the sum of its proper divisors (9293580237).

65055061603 is an equidigital number, since it uses as much as digits as its factorization.

65055061603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9293580236.

The product of its (nonzero) digits is 81000, while the sum is 37.

The spelling of 65055061603 in words is "sixty-five billion, fifty-five million, sixty-one thousand, six hundred three".