1561038488141 has 8 divisors (see below), whose sum is σ = 1704784190400. Its totient is φ = 1417598304640.

The previous prime is 1561038488117. The next prime is 1561038488203. The reversal of 1561038488141 is 1418848301651.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1561038488141 - 2¹⁸ = 1561038225997 is a prime.

It is a super-2 number, since 2×1561038488141² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1561038488141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1561038488101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76369001 + ... + 76389438.

It is an arithmetic number, because the mean of its divisors is an integer number (213098023800).

Almost surely, 2^{1561038488141} is an apocalyptic number.

1561038488141 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1561038488141 is a deficient number, since it is larger than the sum of its proper divisors (143745702259).

1561038488141 is a wasteful number, since it uses less digits than its factorization.

1561038488141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152759379.

The product of its (nonzero) digits is 737280, while the sum is 50.

The spelling of 1561038488141 in words is "one trillion, five hundred sixty-one billion, thirty-eight million, four hundred eighty-eight thousand, one hundred forty-one".