1245355353505 has 32 divisors (see below), whose sum is σ = 1686261556224. Its totient is φ = 877827388416.

The previous prime is 1245355353493. The next prime is 1245355353511. The reversal of 1245355353505 is 5053535535421.

It is not a de Polignac number, because 1245355353505 - 2⁹ = 1245355352993 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6684822 + ... + 6868591.

It is an arithmetic number, because the mean of its divisors is an integer number (52695673632).

Almost surely, 2^{1245355353505} is an apocalyptic number.

It is an amenable number.

1245355353505 is a deficient number, since it is larger than the sum of its proper divisors (440906202719).

1245355353505 is a wasteful number, since it uses less digits than its factorization.

1245355353505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13553505.

The product of its (nonzero) digits is 3375000, while the sum is 46.

The spelling of 1245355353505 in words is "one trillion, two hundred forty-five billion, three hundred fifty-five million, three hundred fifty-three thousand, five hundred five".