20155843468 has 12 divisors (see below), whose sum is σ = 35281151752. Its totient is φ = 10075514400.

The previous prime is 20155843427. The next prime is 20155843471. The reversal of 20155843468 is 86434855102.

It is a super-3 number, since 3×20155843468³ (a number of 32 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 582930 + ... + 616537.

Almost surely, 2^20155843468 is an apocalyptic number.

It is an amenable number.

20155843468 is a deficient number, since it is larger than the sum of its proper divisors (15125308284).

20155843468 is a wasteful number, since it uses less digits than its factorization.

20155843468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1203672 (or 1203670 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 46.

The spelling of 20155843468 in words is "twenty billion, one hundred fifty-five million, eight hundred forty-three thousand, four hundred sixty-eight".