20234155005 has 24 divisors (see below), whose sum is σ = 35098186968. Its totient is φ = 10783656576.

The previous prime is 20234154979. The next prime is 20234155031. The reversal of 20234155005 is 50055143202.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20234154979) and next prime (20234155031).

It can be written as a sum of positive squares in 4 ways, for example, as 11005478649 + 9228676356 = 104907^2 + 96066^2 .

It is not a de Polignac number, because 20234155005 - 2⁵ = 20234154973 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20234155005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 101962 + ... + 225531.

It is an arithmetic number, because the mean of its divisors is an integer number (1462424457).

Almost surely, 2^20234155005 is an apocalyptic number.

It is an amenable number.

20234155005 is a deficient number, since it is larger than the sum of its proper divisors (14864031963).

20234155005 is a wasteful number, since it uses less digits than its factorization.

20234155005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328877 (or 328874 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

Adding to 20234155005 its reverse (50055143202), we get a palindrome (70289298207).

The spelling of 20234155005 in words is "twenty billion, two hundred thirty-four million, one hundred fifty-five thousand, five".