545021166546 has 48 divisors (see below), whose sum is σ = 1188093193560. Its totient is φ = 180565044480.

The previous prime is 545021166517. The next prime is 545021166553. The reversal of 545021166546 is 645661120545.

545021166546 is a `hidden beast` number, since 5 + 45 + 0 + 2 + 1 + 1 + 66 + 546 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 231856695225 + 313164471321 = 481515^2 + 559611^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5663560 + ... + 5758988.

Almost surely, 2^545021166546 is an apocalyptic number.

545021166546 is an abundant number, since it is smaller than the sum of its proper divisors (643072027014).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

545021166546 is a wasteful number, since it uses less digits than its factorization.

545021166546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97371 (or 97368 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 45.

The spelling of 545021166546 in words is "five hundred forty-five billion, twenty-one million, one hundred sixty-six thousand, five hundred forty-six".