1245355354020 has 48 divisors (see below), whose sum is σ = 3513613295808. Its totient is φ = 329559684480.

The previous prime is 1245355353997. The next prime is 1245355354031. The reversal of 1245355354020 is 204535535421.

It is a self number, because there is not a number n which added to its sum of digits gives 1245355354020.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79213219 + ... + 79228938.

It is an arithmetic number, because the mean of its divisors is an integer number (73200276996).

Almost surely, 2^{1245355354020} is an apocalyptic number.

1245355354020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1245355354020 is an abundant number, since it is smaller than the sum of its proper divisors (2268257941788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1245355354020 is a wasteful number, since it uses less digits than its factorization.

1245355354020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158442300 (or 158442298 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 39.

The spelling of 1245355354020 in words is "one trillion, two hundred forty-five billion, three hundred fifty-five million, three hundred fifty-four thousand, twenty".