1563445386340 has 24 divisors (see below), whose sum is σ = 3389146129152. Its totient is φ = 605204665440.

The previous prime is 1563445386337. The next prime is 1563445386343. The reversal of 1563445386340 is 436835443651.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1563445386337) and next prime (1563445386343).

It is a super-2 number, since 2×1563445386340² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1563445386343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1260842434 + ... + 1260843673.

It is an arithmetic number, because the mean of its divisors is an integer number (141214422048).

Almost surely, 2^{1563445386340} is an apocalyptic number.

1563445386340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1563445386340 is an abundant number, since it is smaller than the sum of its proper divisors (1825700742812).

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

1563445386340 is a wasteful number, since it uses less digits than its factorization.

1563445386340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2521686147 (or 2521686145 counting only the distinct ones).

The product of its (nonzero) digits is 12441600, while the sum is 52.

The spelling of 1563445386340 in words is "one trillion, five hundred sixty-three billion, four hundred forty-five million, three hundred eighty-six thousand, three hundred forty".