12500020620 has 36 divisors (see below), whose sum is σ = 37916729760. Its totient is φ = 3333338784.

The previous prime is 12500020619. The next prime is 12500020651. The reversal of 12500020620 is 2602000521.

12500020620 is a `hidden beast` number, since 1 + 25 + 0 + 0 + 0 + 20 + 620 = 666.

12500020620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12500020593 and 12500020602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34722100 + ... + 34722459.

Almost surely, 2^12500020620 is an apocalyptic number.

12500020620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12500020620 is an abundant number, since it is smaller than the sum of its proper divisors (25416709140).

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

12500020620 is a wasteful number, since it uses less digits than its factorization.

12500020620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69444574 (or 69444569 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The spelling of 12500020620 in words is "twelve billion, five hundred million, twenty thousand, six hundred twenty".