20152423245 has 64 divisors (see below), whose sum is σ = 35517358080. Its totient is φ = 9711871488.

The previous prime is 20152423223. The next prime is 20152423273. The reversal of 20152423245 is 54232425102.

It is not a de Polignac number, because 20152423245 - 2²³ = 20144034637 is a prime.

It is a super-2 number, since 2×20152423245² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2401497 + ... + 2409873.

It is an arithmetic number, because the mean of its divisors is an integer number (554958720).

Almost surely, 2^20152423245 is an apocalyptic number.

It is an amenable number.

20152423245 is a deficient number, since it is larger than the sum of its proper divisors (15364934835).

20152423245 is a wasteful number, since it uses less digits than its factorization.

20152423245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8794.

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 20152423245 its reverse (54232425102), we get a palindrome (74384848347).

The spelling of 20152423245 in words is "twenty billion, one hundred fifty-two million, four hundred twenty-three thousand, two hundred forty-five".