3561553994001 has 4 divisors (see below), whose sum is σ = 4748738658672. Its totient is φ = 2374369329332.

The previous prime is 3561553993997. The next prime is 3561553994083. The reversal of 3561553994001 is 1004993551653.

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 3561553994001 - 2² = 3561553993997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3561553996001) 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 3 ways as a sum of consecutive naturals, for example, 593592332331 + ... + 593592332336.

It is an arithmetic number, because the mean of its divisors is an integer number (1187184664668).

Almost surely, 2^{3561553994001} is an apocalyptic number.

It is an amenable number.

3561553994001 is a deficient number, since it is larger than the sum of its proper divisors (1187184664671).

3561553994001 is a wasteful number, since it uses less digits than its factorization.

3561553994001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1187184664670.

The product of its (nonzero) digits is 2187000, while the sum is 51.

It can be divided in two parts, 3561553 and 994001, that added together give a palindrome (4555554).

The spelling of 3561553994001 in words is "three trillion, five hundred sixty-one billion, five hundred fifty-three million, nine hundred ninety-four thousand, one".