3561136495901 has 4 divisors (see below), whose sum is σ = 3561834900000. Its totient is φ = 3560438091804.

The previous prime is 3561136495897. The next prime is 3561136495909. The reversal of 3561136495901 is 1095946311653.

3561136495901 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3561136495901 - 2² = 3561136495897 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3561136495909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 349194401 + ... + 349204598.

It is an arithmetic number, because the mean of its divisors is an integer number (890458725000).

Almost surely, 2^{3561136495901} is an apocalyptic number.

It is an amenable number.

3561136495901 is a deficient number, since it is larger than the sum of its proper divisors (698404099).

3561136495901 is an equidigital number, since it uses as much as digits as its factorization.

3561136495901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698404098.

The product of its (nonzero) digits is 2624400, while the sum is 53.

The spelling of 3561136495901 in words is "three trillion, five hundred sixty-one billion, one hundred thirty-six million, four hundred ninety-five thousand, nine hundred one".