1610505655 has 16 divisors (see below), whose sum is σ = 2199965184. Its totient is φ = 1120350880.

The previous prime is 1610505653. The next prime is 1610505671. The reversal of 1610505655 is 5565050161.

It is not a de Polignac number, because 1610505655 - 2¹ = 1610505653 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 1610505655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1610505653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 635299 + ... + 637828.

It is an arithmetic number, because the mean of its divisors is an integer number (137497824).

Almost surely, 2^1610505655 is an apocalyptic number.

1610505655 is a deficient number, since it is larger than the sum of its proper divisors (589459529).

1610505655 is a wasteful number, since it uses less digits than its factorization.

1610505655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273166.

The product of its (nonzero) digits is 22500, while the sum is 34.

The square root of 1610505655 is about 40131.1058282724. The cubic root of 1610505655 is about 1172.1614063154.

The spelling of 1610505655 in words is "one billion, six hundred ten million, five hundred five thousand, six hundred fifty-five".