1245169013580 has 72 divisors (see below), whose sum is σ = 3838930948944. Its totient is φ = 326601705600.

The previous prime is 1245169013551. The next prime is 1245169013587. The reversal of 1245169013580 is 853109615421.

It is a happy number.

1245169013580 is a `hidden beast` number, since 1 + 2 + 4 + 5 + 1 + 69 + 0 + 1 + 3 + 580 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (1245169013587) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56690706 + ... + 56712665.

It is an arithmetic number, because the mean of its divisors is an integer number (53318485402).

Almost surely, 2^{1245169013580} is an apocalyptic number.

1245169013580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1245169013580 is an abundant number, since it is smaller than the sum of its proper divisors (2593761935364).

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

1245169013580 is a wasteful number, since it uses less digits than its factorization.

1245169013580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113403447 (or 113403442 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The spelling of 1245169013580 in words is "one trillion, two hundred forty-five billion, one hundred sixty-nine million, thirteen thousand, five hundred eighty".