20159619601433 has 4 divisors (see below), whose sum is σ = 21710359570788. Its totient is φ = 18608879632080.

The previous prime is 20159619601423. The next prime is 20159619601493. The reversal of 20159619601433 is 33410691695102.

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

It can be written as a sum of positive squares in 2 ways, for example, as 10456375911424 + 9703243690009 = 3233632^2 + 3115003^2 .

It is a cyclic number.

It is not a de Polignac number, because 20159619601433 - 2⁶ = 20159619601369 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20159619601423) 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, 775369984658 + ... + 775369984683.

It is an arithmetic number, because the mean of its divisors is an integer number (5427589892697).

Almost surely, 2^{20159619601433} is an apocalyptic number.

It is an amenable number.

20159619601433 is a deficient number, since it is larger than the sum of its proper divisors (1550739969355).

20159619601433 is a wasteful number, since it uses less digits than its factorization.

20159619601433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1550739969354.

The product of its (nonzero) digits is 1049760, while the sum is 50.

The spelling of 20159619601433 in words is "twenty trillion, one hundred fifty-nine billion, six hundred nineteen million, six hundred one thousand, four hundred thirty-three".