3661523523703 has 4 divisors (see below), whose sum is σ = 3679923139600. Its totient is φ = 3643123907808.

The previous prime is 3661523523599. The next prime is 3661523523709. The reversal of 3661523523703 is 3073253251663.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3661523523703 - 2¹³ = 3661523515511 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 (3661523523709) 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, 9199807650 + ... + 9199808047.

It is an arithmetic number, because the mean of its divisors is an integer number (919980784900).

Almost surely, 2^{3661523523703} is an apocalyptic number.

3661523523703 is a deficient number, since it is larger than the sum of its proper divisors (18399615897).

3661523523703 is a wasteful number, since it uses less digits than its factorization.

3661523523703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18399615896.

The product of its (nonzero) digits is 2041200, while the sum is 46.

The spelling of 3661523523703 in words is "three trillion, six hundred sixty-one billion, five hundred twenty-three million, five hundred twenty-three thousand, seven hundred three".