10543512215420 has 24 divisors (see below), whose sum is σ = 22144767162000. Its totient is φ = 4216758884352.

The previous prime is 10543512215407. The next prime is 10543512215441. The reversal of 10543512215420 is 2451221534501.

It is a super-2 number, since 2×10543512215420² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40241270 + ... + 40502429.

It is an arithmetic number, because the mean of its divisors is an integer number (922698631750).

Almost surely, 2^{10543512215420} is an apocalyptic number.

10543512215420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10543512215420 is an abundant number, since it is smaller than the sum of its proper divisors (11601254946580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10543512215420 is a wasteful number, since it uses less digits than its factorization.

10543512215420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80750237 (or 80750235 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 35.

Adding to 10543512215420 its reverse (2451221534501), we get a palindrome (12994733749921).

The spelling of 10543512215420 in words is "ten trillion, five hundred forty-three billion, five hundred twelve million, two hundred fifteen thousand, four hundred twenty".