12010553620 has 24 divisors (see below), whose sum is σ = 27162329544. Its totient is φ = 4434665856.

The previous prime is 12010553587. The next prime is 12010553627. The reversal of 12010553620 is 2635501021.

It can be written as a sum of positive squares in 4 ways, for example, as 851589124 + 11158964496 = 29182^2 + 105636^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12010553627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23096959 + ... + 23097478.

It is an arithmetic number, because the mean of its divisors is an integer number (1131763731).

Almost surely, 2^12010553620 is an apocalyptic number.

12010553620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12010553620 is an abundant number, since it is smaller than the sum of its proper divisors (15151775924).

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

12010553620 is a wasteful number, since it uses less digits than its factorization.

12010553620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46194459 (or 46194457 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The spelling of 12010553620 in words is "twelve billion, ten million, five hundred fifty-three thousand, six hundred twenty".