545031135740666 has 4 divisors (see below), whose sum is σ = 817546703611002. Its totient is φ = 272515567870332.

The previous prime is 545031135740653. The next prime is 545031135740771. The reversal of 545031135740666 is 666047531130545.

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

It can be written as a sum of positive squares in only one way, i.e., 293470441498441 + 251560694242225 = 17130979^2 + 15860665^2 .

It is a super-3 number, since 3×545031135740666³ (a number of 45 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136257783935165 + ... + 136257783935168.

Almost surely, 2^{545031135740666} is an apocalyptic number.

545031135740666 is a deficient number, since it is larger than the sum of its proper divisors (272515567870336).

545031135740666 is a wasteful number, since it uses less digits than its factorization.

545031135740666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272515567870335.

The product of its (nonzero) digits is 27216000, while the sum is 56.

The spelling of 545031135740666 in words is "five hundred forty-five trillion, thirty-one billion, one hundred thirty-five million, seven hundred forty thousand, six hundred sixty-six".