20152423061 has 8 divisors (see below), whose sum is σ = 21043964160. Its totient is φ = 19262161072.

The previous prime is 20152422971. The next prime is 20152423069. The reversal of 20152423061 is 16032425102.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-20152423061 is a prime.

It is a super-2 number, since 2×20152423061² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20152423061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20152423069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 287501 + ... + 350658.

It is an arithmetic number, because the mean of its divisors is an integer number (2630495520).

Almost surely, 2^20152423061 is an apocalyptic number.

It is an amenable number.

20152423061 is a deficient number, since it is larger than the sum of its proper divisors (891541099).

20152423061 is a wasteful number, since it uses less digits than its factorization.

20152423061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 639555.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 20152423061 its reverse (16032425102), we get a palindrome (36184848163).

The spelling of 20152423061 in words is "twenty billion, one hundred fifty-two million, four hundred twenty-three thousand, sixty-one".