1330898499691 has 4 divisors (see below), whose sum is σ = 1356009792192. Its totient is φ = 1305787207192.

The previous prime is 1330898499659. The next prime is 1330898499709. The reversal of 1330898499691 is 1969948980331.

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 1330898499691 - 2⁵ = 1330898499659 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 1330898499691.

It is not an unprimeable number, because it can be changed into a prime (1330898499631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12555646171 + ... + 12555646276.

It is an arithmetic number, because the mean of its divisors is an integer number (339002448048).

Almost surely, 2^{1330898499691} is an apocalyptic number.

1330898499691 is a deficient number, since it is larger than the sum of its proper divisors (25111292501).

1330898499691 is an equidigital number, since it uses as much as digits as its factorization.

1330898499691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25111292500.

The product of its (nonzero) digits is 90699264, while the sum is 70.

The spelling of 1330898499691 in words is "one trillion, three hundred thirty billion, eight hundred ninety-eight million, four hundred ninety-nine thousand, six hundred ninety-one".