1655497873 has 8 divisors (see below), whose sum is σ = 1779707520. Its totient is φ = 1534996080.

The previous prime is 1655497829. The next prime is 1655497889. The reversal of 1655497873 is 3787945561.

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

It is a cyclic number.

It is not a de Polignac number, because 1655497873 - 2²⁵ = 1621943441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1655417873) 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, 926038 + ... + 927823.

It is an arithmetic number, because the mean of its divisors is an integer number (222463440).

Almost surely, 2^1655497873 is an apocalyptic number.

It is an amenable number.

1655497873 is a deficient number, since it is larger than the sum of its proper divisors (124209647).

1655497873 is a wasteful number, since it uses less digits than its factorization.

1655497873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1853927.

The product of its digits is 6350400, while the sum is 55.

The square root of 1655497873 is about 40687.8098820765. The cubic root of 1655497873 is about 1182.9767496283.

The spelling of 1655497873 in words is "one billion, six hundred fifty-five million, four hundred ninety-seven thousand, eight hundred seventy-three".