1340998331658 has 16 divisors (see below), whose sum is σ = 2682633616416. Its totient is φ = 446893285040.

The previous prime is 1340998331633. The next prime is 1340998331681. The reversal of 1340998331658 is 8561338990431.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26512341 + ... + 26562872.

It is an arithmetic number, because the mean of its divisors is an integer number (167664601026).

Almost surely, 2^{1340998331658} is an apocalyptic number.

1340998331658 is an abundant number, since it is smaller than the sum of its proper divisors (1341635284758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1340998331658 is a wasteful number, since it uses less digits than its factorization.

1340998331658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53079429.

The product of its (nonzero) digits is 16796160, while the sum is 60.

The spelling of 1340998331658 in words is "one trillion, three hundred forty billion, nine hundred ninety-eight million, three hundred thirty-one thousand, six hundred fifty-eight".