545522154540 has 192 divisors, whose sum is σ = 1696541414400. Its totient is φ = 129856896000.

The previous prime is 545522154451. The next prime is 545522154547. The reversal of 545522154540 is 45451225545.

It is a super-2 number, since 2×545522154540² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 545522154492 and 545522154501.

It is not an unprimeable number, because it can be changed into a prime (545522154547) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 24104430 + ... + 24127050.

It is an arithmetic number, because the mean of its divisors is an integer number (8836153200).

Almost surely, 2^545522154540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 545522154540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (848270707200).

545522154540 is an abundant number, since it is smaller than the sum of its proper divisors (1151019259860).

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

545522154540 is a wasteful number, since it uses less digits than its factorization.

545522154540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23304 (or 23302 counting only the distinct ones).

The product of its (nonzero) digits is 800000, while the sum is 42.

The spelling of 545522154540 in words is "five hundred forty-five billion, five hundred twenty-two million, one hundred fifty-four thousand, five hundred forty".