1361551613061 has 16 divisors (see below), whose sum is σ = 1841976576000. Its totient is φ = 894509800128.

The previous prime is 1361551613039. The next prime is 1361551613111. The reversal of 1361551613061 is 1603161551631.

It is not a de Polignac number, because 1361551613061 - 2¹⁸ = 1361551350917 is a prime.

It is a super-2 number, since 2×1361551613061² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361551612061) 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 15 ways as a sum of consecutive naturals, for example, 11935266 + ... + 12048803.

It is an arithmetic number, because the mean of its divisors is an integer number (115123536000).

Almost surely, 2^{1361551613061} is an apocalyptic number.

It is an amenable number.

1361551613061 is a deficient number, since it is larger than the sum of its proper divisors (480424962939).

1361551613061 is a wasteful number, since it uses less digits than its factorization.

1361551613061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23984348.

The product of its (nonzero) digits is 48600, while the sum is 39.

The spelling of 1361551613061 in words is "one trillion, three hundred sixty-one billion, five hundred fifty-one million, six hundred thirteen thousand, sixty-one".