20152453414505 has 16 divisors (see below), whose sum is σ = 24676615085760. Its totient is φ = 15793771925568.

The previous prime is 20152453414463. The next prime is 20152453414517. The reversal of 20152453414505 is 50541435425102.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20152453414505 - 2¹² = 20152453410409 is a prime.

It is a super-2 number, since 2×20152453414505² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57524147 + ... + 57873416.

It is an arithmetic number, because the mean of its divisors is an integer number (1542288442860).

Almost surely, 2^{20152453414505} is an apocalyptic number.

It is an amenable number.

20152453414505 is a deficient number, since it is larger than the sum of its proper divisors (4524161671255).

20152453414505 is a wasteful number, since it uses less digits than its factorization.

20152453414505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115398280.

The product of its (nonzero) digits is 480000, while the sum is 41.

Adding to 20152453414505 its reverse (50541435425102), we get a palindrome (70693888839607).

The spelling of 20152453414505 in words is "twenty trillion, one hundred fifty-two billion, four hundred fifty-three million, four hundred fourteen thousand, five hundred five".