35540616640561 has 4 divisors (see below), whose sum is σ = 35544056842224. Its totient is φ = 35537176438900.

The previous prime is 35540616640553. The next prime is 35540616640589. The reversal of 35540616640561 is 16504661604553.

It is a happy number.

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 35540616640561 - 2³ = 35540616640553 is a prime.

It is a super-2 number, since 2×35540616640561² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 35540616640499 and 35540616640508.

It is not an unprimeable number, because it can be changed into a prime (35540616640591) 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, 1720085335 + ... + 1720105996.

It is an arithmetic number, because the mean of its divisors is an integer number (8886014210556).

Almost surely, 2^{35540616640561} is an apocalyptic number.

It is an amenable number.

35540616640561 is a deficient number, since it is larger than the sum of its proper divisors (3440201663).

35540616640561 is a wasteful number, since it uses less digits than its factorization.

35540616640561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3440201662.

The product of its (nonzero) digits is 7776000, while the sum is 52.

The spelling of 35540616640561 in words is "thirty-five trillion, five hundred forty billion, six hundred sixteen million, six hundred forty thousand, five hundred sixty-one".