20152453414555 has 64 divisors (see below), whose sum is σ = 31784937062400. Its totient is φ = 11898657417600.

The previous prime is 20152453414547. The next prime is 20152453414603. The reversal of 20152453414555 is 55541435425102.

It is a happy number.

It is not a de Polignac number, because 20152453414555 - 2³ = 20152453414547 is a prime.

It is a super-2 number, since 2×20152453414555² (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 63 ways as a sum of consecutive naturals, for example, 17402005 + ... + 18523894.

It is an arithmetic number, because the mean of its divisors is an integer number (496639641600).

Almost surely, 2^{20152453414555} is an apocalyptic number.

20152453414555 is a deficient number, since it is larger than the sum of its proper divisors (11632483647845).

20152453414555 is a wasteful number, since it uses less digits than its factorization.

20152453414555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35926000.

The product of its (nonzero) digits is 2400000, while the sum is 46.

Adding to 20152453414555 its reverse (55541435425102), we get a palindrome (75693888839657).

The spelling of 20152453414555 in words is "twenty trillion, one hundred fifty-two billion, four hundred fifty-three million, four hundred fourteen thousand, five hundred fifty-five".