2068158853690 has 8 divisors (see below), whose sum is σ = 3722685936660. Its totient is φ = 827263541472.

The previous prime is 2068158853603. The next prime is 2068158853697. The reversal of 2068158853690 is 963588518602.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1937822691249 + 130336162441 = 1392057^2 + 361021^2 .

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

It is a super-2 number, since 2×2068158853690² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2068158853697) 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, 103407942675 + ... + 103407942694.

Almost surely, 2^{2068158853690} is an apocalyptic number.

2068158853690 is a deficient number, since it is larger than the sum of its proper divisors (1654527082970).

2068158853690 is a wasteful number, since it uses less digits than its factorization.

2068158853690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206815885376.

The product of its (nonzero) digits is 24883200, while the sum is 61.

The spelling of 2068158853690 in words is "two trillion, sixty-eight billion, one hundred fifty-eight million, eight hundred fifty-three thousand, six hundred ninety".