3865500153616 has 40 divisors (see below), whose sum is σ = 7502147503704. Its totient is φ = 1929464263680.

The previous prime is 3865500153611. The next prime is 3865500153623. The reversal of 3865500153616 is 6163510055683.

It can be written as a sum of positive squares in 4 ways, for example, as 1645114064400 + 2220386089216 = 1282620^2 + 1490096^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3865500153616.

It is not an unprimeable number, because it can be changed into a prime (3865500153611) 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, 29020866 + ... + 29153758.

Almost surely, 2^{3865500153616} is an apocalyptic number.

It is an amenable number.

3865500153616 is a deficient number, since it is larger than the sum of its proper divisors (3636647350088).

3865500153616 is a wasteful number, since it uses less digits than its factorization.

3865500153616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135979 (or 135973 counting only the distinct ones).

The product of its (nonzero) digits is 1944000, while the sum is 49.

The spelling of 3865500153616 in words is "three trillion, eight hundred sixty-five billion, five hundred million, one hundred fifty-three thousand, six hundred sixteen".