1245354545505 has 16 divisors (see below), whose sum is σ = 2277219740544. Its totient is φ = 569304935040.

The previous prime is 1245354545503. The next prime is 1245354545509. The reversal of 1245354545505 is 5055454535421.

It is not a de Polignac number, because 1245354545505 - 2¹ = 1245354545503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1245354545503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5930259636 + ... + 5930259845.

It is an arithmetic number, because the mean of its divisors is an integer number (142326233784).

Almost surely, 2^{1245354545505} is an apocalyptic number.

1245354545505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1245354545505 is a deficient number, since it is larger than the sum of its proper divisors (1031865195039).

1245354545505 is a wasteful number, since it uses less digits than its factorization.

1245354545505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11860519496.

The product of its (nonzero) digits is 6000000, while the sum is 48.

The spelling of 1245354545505 in words is "one trillion, two hundred forty-five billion, three hundred fifty-four million, five hundred forty-five thousand, five hundred five".