545220554986 has 4 divisors (see below), whose sum is σ = 817830832482. Its totient is φ = 272610277492.

The previous prime is 545220554981. The next prime is 545220554987. The reversal of 545220554986 is 689455022545.

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., 535357085761 + 9863469225 = 731681^2 + 99315^2 .

It is not an unprimeable number, because it can be changed into a prime (545220554981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136305138745 + ... + 136305138748.

Almost surely, 2^545220554986 is an apocalyptic number.

545220554986 is a deficient number, since it is larger than the sum of its proper divisors (272610277496).

545220554986 is a wasteful number, since it uses less digits than its factorization.

545220554986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272610277495.

The product of its (nonzero) digits is 17280000, while the sum is 55.

The spelling of 545220554986 in words is "five hundred forty-five billion, two hundred twenty million, five hundred fifty-four thousand, nine hundred eighty-six".