60645955609 has 4 divisors (see below), whose sum is σ = 62125125300. Its totient is φ = 59166785920.

The previous prime is 60645955561. The next prime is 60645955613. The reversal of 60645955609 is 90655954606.

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

It can be written as a sum of positive squares in 2 ways, for example, as 26635219209 + 34010736400 = 163203^2 + 184420^2 .

It is a cyclic number.

It is not a de Polignac number, because 60645955609 - 2⁷ = 60645955481 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 60645955609.

It is not an unprimeable number, because it can be changed into a prime (60645953609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 739584784 + ... + 739584865.

It is an arithmetic number, because the mean of its divisors is an integer number (15531281325).

Almost surely, 2^60645955609 is an apocalyptic number.

It is an amenable number.

60645955609 is a deficient number, since it is larger than the sum of its proper divisors (1479169691).

60645955609 is a wasteful number, since it uses less digits than its factorization.

60645955609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1479169690.

The product of its (nonzero) digits is 8748000, while the sum is 55.

The spelling of 60645955609 in words is "sixty billion, six hundred forty-five million, nine hundred fifty-five thousand, six hundred nine".