545331453521 has 8 divisors (see below), whose sum is σ = 562581675264. Its totient is φ = 528213417840.

The previous prime is 545331453517. The next prime is 545331453533. The reversal of 545331453521 is 125354133545.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 545331453521 - 2² = 545331453517 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545331453551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33038135 + ... + 33054636.

It is an arithmetic number, because the mean of its divisors is an integer number (70322709408).

Almost surely, 2^545331453521 is an apocalyptic number.

It is an amenable number.

545331453521 is a deficient number, since it is larger than the sum of its proper divisors (17250221743).

545331453521 is a wasteful number, since it uses less digits than its factorization.

545331453521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66093031.

The product of its digits is 540000, while the sum is 41.

The spelling of 545331453521 in words is "five hundred forty-five billion, three hundred thirty-one million, four hundred fifty-three thousand, five hundred twenty-one".