12040799652 has 144 divisors (see below), whose sum is σ = 37145472000. Its totient is φ = 3214391040.

The previous prime is 12040799581. The next prime is 12040799689. The reversal of 12040799652 is 25699704021.

It is a super-2 number, since 2×12040799652² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12040799598 and 12040799607.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 199974 + ... + 253122.

Almost surely, 2^12040799652 is an apocalyptic number.

12040799652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12040799652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18572736000).

12040799652 is an abundant number, since it is smaller than the sum of its proper divisors (25104672348).

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

12040799652 is a wasteful number, since it uses less digits than its factorization.

12040799652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53226 (or 53221 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 12040799652 in words is "twelve billion, forty million, seven hundred ninety-nine thousand, six hundred fifty-two".