12550145020 has 24 divisors (see below), whose sum is σ = 30120348384. Its totient is φ = 4302906816.

The previous prime is 12550144987. The next prime is 12550145039. The reversal of 12550145020 is 2054105521.

It is a super-2 number, since 2×12550145020² (a number of 21 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, 44821807 + ... + 44822086.

It is an arithmetic number, because the mean of its divisors is an integer number (1255014516).

Almost surely, 2^12550145020 is an apocalyptic number.

12550145020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12550145020 is an abundant number, since it is smaller than the sum of its proper divisors (17570203364).

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

12550145020 is a wasteful number, since it uses less digits than its factorization.

12550145020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89643909 (or 89643907 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The spelling of 12550145020 in words is "twelve billion, five hundred fifty million, one hundred forty-five thousand, twenty".