3516315661 has 4 divisors (see below), whose sum is σ = 3550454752. Its totient is φ = 3482176572.

The previous prime is 3516315637. The next prime is 3516315697. The reversal of 3516315661 is 1665136153.

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 3516315661 - 2⁵ = 3516315629 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3516315661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3516318661) 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, 17069391 + ... + 17069596.

It is an arithmetic number, because the mean of its divisors is an integer number (887613688).

Almost surely, 2^3516315661 is an apocalyptic number.

It is an amenable number.

3516315661 is a deficient number, since it is larger than the sum of its proper divisors (34139091).

3516315661 is a wasteful number, since it uses less digits than its factorization.

3516315661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34139090.

The product of its digits is 48600, while the sum is 37.

The square root of 3516315661 is about 59298.5300070752. The cubic root of 3516315661 is about 1520.6500654630.

The spelling of 3516315661 in words is "three billion, five hundred sixteen million, three hundred fifteen thousand, six hundred sixty-one".