61135036208 has 20 divisors (see below), whose sum is σ = 120117432528. Its totient is φ = 30136989120.

The previous prime is 61135036199. The next prime is 61135036231. The reversal of 61135036208 is 80263053116.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26906891 + ... + 26909162.

Almost surely, 2^61135036208 is an apocalyptic number.

It is an amenable number.

61135036208 is a deficient number, since it is larger than the sum of its proper divisors (58982396320).

61135036208 is a wasteful number, since it uses less digits than its factorization.

61135036208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53816132 (or 53816126 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 61135036208 in words is "sixty-one billion, one hundred thirty-five million, thirty-six thousand, two hundred eight".