3516213344645 has 8 divisors (see below), whose sum is σ = 4219468857240. Its totient is φ = 2812962113280.

The previous prime is 3516213344627. The next prime is 3516213344653. The reversal of 3516213344645 is 5464433126153.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1539304231969 + 1976909112676 = 1240687^2 + 1406026^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-3516213344645 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3516213344645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1158521 + ... + 2893889.

It is an arithmetic number, because the mean of its divisors is an integer number (527433607155).

Almost surely, 2^{3516213344645} is an apocalyptic number.

It is an amenable number.

3516213344645 is a deficient number, since it is larger than the sum of its proper divisors (703255512595).

3516213344645 is a wasteful number, since it uses less digits than its factorization.

3516213344645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2140615.

The product of its digits is 3110400, while the sum is 47.

The spelling of 3516213344645 in words is "three trillion, five hundred sixteen billion, two hundred thirteen million, three hundred forty-four thousand, six hundred forty-five".