4545114661 has 4 divisors (see below), whose sum is σ = 4553516524. Its totient is φ = 4536712800.

The previous prime is 4545114643. The next prime is 4545114671. The reversal of 4545114661 is 1664115454.

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 528724036 + 4016390625 = 22994^2 + 63375^2 .

It is a cyclic number.

It is not a de Polignac number, because 4545114661 - 2¹⁷ = 4544983589 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 4545114661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4545114671) 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, 4200120 + ... + 4201201.

It is an arithmetic number, because the mean of its divisors is an integer number (1138379131).

Almost surely, 2^4545114661 is an apocalyptic number.

It is an amenable number.

4545114661 is a deficient number, since it is larger than the sum of its proper divisors (8401863).

4545114661 is an equidigital number, since it uses as much as digits as its factorization.

4545114661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8401862.

The product of its digits is 57600, while the sum is 37.

The square root of 4545114661 is about 67417.4655486247. The cubic root of 4545114661 is about 1656.4625232051.

It can be divided in two parts, 454 and 5114661, that added together give a palindrome (5115115).

The spelling of 4545114661 in words is "four billion, five hundred forty-five million, one hundred fourteen thousand, six hundred sixty-one".