245450455555045 has 16 divisors (see below), whose sum is σ = 318949984250352. Its totient is φ = 180254308193280.

The previous prime is 245450455555037. The next prime is 245450455555049. The reversal of 245450455555045 is 540555554054542.

It can be written as a sum of positive squares in 8 ways, for example, as 28789513123396 + 216660942431649 = 5365586^2 + 14719407^2 .

It is not a de Polignac number, because 245450455555045 - 2³ = 245450455555037 is a prime.

It is a super-2 number, since 2×245450455555045² (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 (245450455555049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10431371812 + ... + 10431395341.

It is an arithmetic number, because the mean of its divisors is an integer number (19934374015647).

Almost surely, 2^{245450455555045} is an apocalyptic number.

It is an amenable number.

245450455555045 is a deficient number, since it is larger than the sum of its proper divisors (73499528695307).

245450455555045 is a wasteful number, since it uses less digits than its factorization.

245450455555045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20862767352.

The product of its (nonzero) digits is 200000000, while the sum is 58.

The spelling of 245450455555045 in words is "two hundred forty-five trillion, four hundred fifty billion, four hundred fifty-five million, five hundred fifty-five thousand, forty-five".