1543151152220 has 12 divisors (see below), whose sum is σ = 3240617419704. Its totient is φ = 617260460880.

The previous prime is 1543151152157. The next prime is 1543151152223. The reversal of 1543151152220 is 222511513451.

It is a super-2 number, since 2×1543151152220² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1543151152223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38578778786 + ... + 38578778825.

It is an arithmetic number, because the mean of its divisors is an integer number (270051451642).

Almost surely, 2^{1543151152220} is an apocalyptic number.

1543151152220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1543151152220 is an abundant number, since it is smaller than the sum of its proper divisors (1697466267484).

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

1543151152220 is a wasteful number, since it uses less digits than its factorization.

1543151152220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77157557620 (or 77157557618 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 32.

Adding to 1543151152220 its reverse (222511513451), we get a palindrome (1765662665671).

The spelling of 1543151152220 in words is "one trillion, five hundred forty-three billion, one hundred fifty-one million, one hundred fifty-two thousand, two hundred twenty".