1613065655 has 16 divisors (see below), whose sum is σ = 2051637984. Its totient is φ = 1213301760.

The previous prime is 1613065633. The next prime is 1613065661. The reversal of 1613065655 is 5565603161.

It is not a de Polignac number, because 1613065655 - 2²⁶ = 1545956791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78620 + ... + 96990.

It is an arithmetic number, because the mean of its divisors is an integer number (128227374).

Almost surely, 2^1613065655 is an apocalyptic number.

1613065655 is a deficient number, since it is larger than the sum of its proper divisors (438572329).

1613065655 is a wasteful number, since it uses less digits than its factorization.

1613065655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19426.

The product of its (nonzero) digits is 81000, while the sum is 38.

The square root of 1613065655 is about 40162.9886213663. The cubic root of 1613065655 is about 1172.7821522784.

The spelling of 1613065655 in words is "one billion, six hundred thirteen million, sixty-five thousand, six hundred fifty-five".