655249552745 has 16 divisors (see below), whose sum is σ = 791643574800. Its totient is φ = 520637497344.

The previous prime is 655249552733. The next prime is 655249552759. The reversal of 655249552745 is 547255942556.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 2534216281 + 652715336464 = 50341^2 + 807908^2 .

It is a cyclic number.

It is not a de Polignac number, because 655249552745 - 2¹⁰ = 655249551721 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10961177 + ... + 11020793.

It is an arithmetic number, because the mean of its divisors is an integer number (49477723425).

Almost surely, 2^655249552745 is an apocalyptic number.

It is an amenable number.

655249552745 is a deficient number, since it is larger than the sum of its proper divisors (136394022055).

655249552745 is a wasteful number, since it uses less digits than its factorization.

655249552745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74524.

The product of its digits is 75600000, while the sum is 59.

The spelling of 655249552745 in words is "six hundred fifty-five billion, two hundred forty-nine million, five hundred fifty-two thousand, seven hundred forty-five".