3216616157 has 4 divisors (see below), whose sum is σ = 3237104316. Its totient is φ = 3196128000.

The previous prime is 3216616129. The next prime is 3216616159. The reversal of 3216616157 is 7516166123.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1349166361 + 1867449796 = 36731^2 + 43214^2 .

It is a cyclic number.

It is not a de Polignac number, because 3216616157 - 2¹⁸ = 3216354013 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 3216616157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3216616159) 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, 10243844 + ... + 10244157.

It is an arithmetic number, because the mean of its divisors is an integer number (809276079).

Almost surely, 2^3216616157 is an apocalyptic number.

It is an amenable number.

3216616157 is a deficient number, since it is larger than the sum of its proper divisors (20488159).

3216616157 is a wasteful number, since it uses less digits than its factorization.

3216616157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20488158.

The product of its digits is 45360, while the sum is 38.

The square root of 3216616157 is about 56715.2198003323. The cubic root of 3216616157 is about 1476.1587993463.

The spelling of 3216616157 in words is "three billion, two hundred sixteen million, six hundred sixteen thousand, one hundred fifty-seven".