1659496798 has 4 divisors (see below), whose sum is σ = 2489245200. Its totient is φ = 829748398.

The previous prime is 1659496753. The next prime is 1659496799. The reversal of 1659496798 is 8976949561.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1659496799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 414874198 + ... + 414874201.

It is an arithmetic number, because the mean of its divisors is an integer number (622311300).

Almost surely, 2^1659496798 is an apocalyptic number.

1659496798 is a deficient number, since it is larger than the sum of its proper divisors (829748402).

1659496798 is an equidigital number, since it uses as much as digits as its factorization.

1659496798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829748401.

The product of its digits is 29393280, while the sum is 64.

The square root of 1659496798 is about 40736.9218031996. The cubic root of 1659496798 is about 1183.9284938060.

The spelling of 1659496798 in words is "one billion, six hundred fifty-nine million, four hundred ninety-six thousand, seven hundred ninety-eight".