1361777601161 has 8 divisors (see below), whose sum is σ = 1363884624960. Its totient is φ = 1359671257872.

The previous prime is 1361777601139. The next prime is 1361777601167. The reversal of 1361777601161 is 1611067771631.

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 1361777601161 - 2⁶ = 1361777601097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1361777601167) 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, 3910700 + ... + 4244658.

It is an arithmetic number, because the mean of its divisors is an integer number (170485578120).

Almost surely, 2^{1361777601161} is an apocalyptic number.

It is an amenable number.

1361777601161 is a deficient number, since it is larger than the sum of its proper divisors (2107023799).

1361777601161 is an equidigital number, since it uses as much as digits as its factorization.

1361777601161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340255.

The product of its (nonzero) digits is 222264, while the sum is 47.

The spelling of 1361777601161 in words is "one trillion, three hundred sixty-one billion, seven hundred seventy-seven million, six hundred one thousand, one hundred sixty-one".