545415215045541 has 16 divisors (see below), whose sum is σ = 728503766452224. Its totient is φ = 362968649632944.

The previous prime is 545415215045539. The next prime is 545415215045641. The reversal of 545415215045541 is 145540512514545.

It is not a de Polignac number, because 545415215045541 - 2¹ = 545415215045539 is a prime.

It is a super-2 number, since 2×545415215045541² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545415215045641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21899305 + ... + 39628398.

It is an arithmetic number, because the mean of its divisors is an integer number (45531485403264).

Almost surely, 2^{545415215045541} is an apocalyptic number.

It is an amenable number.

545415215045541 is a deficient number, since it is larger than the sum of its proper divisors (183088551406683).

545415215045541 is a wasteful number, since it uses less digits than its factorization.

545415215045541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61532920.

The product of its (nonzero) digits is 8000000, while the sum is 51.

The spelling of 545415215045541 in words is "five hundred forty-five trillion, four hundred fifteen billion, two hundred fifteen million, forty-five thousand, five hundred forty-one".