1655496865 has 8 divisors (see below), whose sum is σ = 2167195968. Its totient is φ = 1203997680.

The previous prime is 1655496863. The next prime is 1655496877. The reversal of 1655496865 is 5686945561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1655496865 - 2¹ = 1655496863 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55), and also a Moran number because the ratio is a prime number: 30099943 = 1655496865 / (1 + 6 + 5 + 5 + 4 + 9 + 6 + 8 + 6 + 5).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1655496863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15049917 + ... + 15050026.

It is an arithmetic number, because the mean of its divisors is an integer number (270899496).

Almost surely, 2^1655496865 is an apocalyptic number.

It is an amenable number.

1655496865 is a deficient number, since it is larger than the sum of its proper divisors (511699103).

1655496865 is a wasteful number, since it uses less digits than its factorization.

1655496865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30099959.

The product of its digits is 7776000, while the sum is 55.

The square root of 1655496865 is about 40687.7974950722. The cubic root of 1655496865 is about 1182.9765095311.

The spelling of 1655496865 in words is "one billion, six hundred fifty-five million, four hundred ninety-six thousand, eight hundred sixty-five".