12620455500 has 96 divisors (see below), whose sum is σ = 38685104640. Its totient is φ = 3188318400.

The previous prime is 12620455487. The next prime is 12620455501. The reversal of 12620455500 is 555402621.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (12620455501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 192912 + ... + 249911.

It is an arithmetic number, because the mean of its divisors is an integer number (402969840).

Almost surely, 2^12620455500 is an apocalyptic number.

12620455500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12620455500 is an abundant number, since it is smaller than the sum of its proper divisors (26064649140).

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

12620455500 is a wasteful number, since it uses less digits than its factorization.

12620455500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442864 (or 442852 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The spelling of 12620455500 in words is "twelve billion, six hundred twenty million, four hundred fifty-five thousand, five hundred".