15243155620 has 96 divisors (see below), whose sum is σ = 40758681600. Its totient is φ = 4650003840.

The previous prime is 15243155611. The next prime is 15243155647. The reversal of 15243155620 is 2655134251.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32920 + ... + 177679.

It is an arithmetic number, because the mean of its divisors is an integer number (424569600).

Almost surely, 2^15243155620 is an apocalyptic number.

15243155620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15243155620 is an abundant number, since it is smaller than the sum of its proper divisors (25515525980).

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

15243155620 is a wasteful number, since it uses less digits than its factorization.

15243155620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210673 (or 210671 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 34.

Adding to 15243155620 its reverse (2655134251), we get a palindrome (17898289871).

The spelling of 15243155620 in words is "fifteen billion, two hundred forty-three million, one hundred fifty-five thousand, six hundred twenty".