545645912580 has 72 divisors (see below), whose sum is σ = 1657800144000. Its totient is φ = 145270481472.

The previous prime is 545645912543. The next prime is 545645912587. The reversal of 545645912580 is 85219546545.

545645912580 is a `hidden beast` number, since 5 + 4 + 5 + 6 + 4 + 59 + 1 + 2 + 580 = 666.

It is a super-2 number, since 2×545645912580² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (545645912587) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2337180 + ... + 2560019.

It is an arithmetic number, because the mean of its divisors is an integer number (23025002000).

Almost surely, 2^545645912580 is an apocalyptic number.

It is an amenable number.

545645912580 is an abundant number, since it is smaller than the sum of its proper divisors (1112154231420).

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

545645912580 is a wasteful number, since it uses less digits than its factorization.

545645912580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4897833 (or 4897828 counting only the distinct ones).

The product of its (nonzero) digits is 8640000, while the sum is 54.

The spelling of 545645912580 in words is "five hundred forty-five billion, six hundred forty-five million, nine hundred twelve thousand, five hundred eighty".