1658540795 has 4 divisors (see below), whose sum is σ = 1990248960. Its totient is φ = 1326832632.

The previous prime is 1658540743. The next prime is 1658540803. The reversal of 1658540795 is 5970458561.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1658540795 - 2⁶ = 1658540731 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165854075 + ... + 165854084.

It is an arithmetic number, because the mean of its divisors is an integer number (497562240).

Almost surely, 2^1658540795 is an apocalyptic number.

1658540795 is a deficient number, since it is larger than the sum of its proper divisors (331708165).

1658540795 is an equidigital number, since it uses as much as digits as its factorization.

1658540795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331708164.

The product of its (nonzero) digits is 1512000, while the sum is 50.

The square root of 1658540795 is about 40725.1862488068. The cubic root of 1658540795 is about 1183.7011042731.

The spelling of 1658540795 in words is "one billion, six hundred fifty-eight million, five hundred forty thousand, seven hundred ninety-five".