1563156361650 has 192 divisors, whose sum is σ = 4209242341248. Its totient is φ = 381610690560.

The previous prime is 1563156361619. The next prime is 1563156361673. The reversal of 1563156361650 is 561636513651.

It is a self number, because there is not a number n which added to its sum of digits gives 1563156361650.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 388166937 + ... + 388170963.

It is an arithmetic number, because the mean of its divisors is an integer number (21923137194).

Almost surely, 2^{1563156361650} is an apocalyptic number.

1563156361650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1563156361650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2104621170624).

1563156361650 is an abundant number, since it is smaller than the sum of its proper divisors (2646085979598).

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

1563156361650 is a wasteful number, since it uses less digits than its factorization.

1563156361650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5645 (or 5640 counting only the distinct ones).

The product of its (nonzero) digits is 1458000, while the sum is 48.

The spelling of 1563156361650 in words is "one trillion, five hundred sixty-three billion, one hundred fifty-six million, three hundred sixty-one thousand, six hundred fifty".