3436640366561 has 8 divisors (see below), whose sum is σ = 3442300243200. Its totient is φ = 3430984375152.

The previous prime is 3436640366557. The next prime is 3436640366563. The reversal of 3436640366561 is 1656630466343.

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 3436640366561 - 2² = 3436640366557 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3436640366563) 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, 801890 + ... + 2741588.

It is an arithmetic number, because the mean of its divisors is an integer number (430287530400).

Almost surely, 2^{3436640366561} is an apocalyptic number.

It is an amenable number.

3436640366561 is a deficient number, since it is larger than the sum of its proper divisors (5659876639).

3436640366561 is a wasteful number, since it uses less digits than its factorization.

3436640366561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1942615.

The product of its (nonzero) digits is 16796160, while the sum is 53.

The spelling of 3436640366561 in words is "three trillion, four hundred thirty-six billion, six hundred forty million, three hundred sixty-six thousand, five hundred sixty-one".