1240566443652 has 48 divisors (see below), whose sum is σ = 2997880768512. Its totient is φ = 399023456160.

The previous prime is 1240566443647. The next prime is 1240566443719. The reversal of 1240566443652 is 2563446650421.

It is a super-2 number, since 2×1240566443652² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15449998 + ... + 15530085.

It is an arithmetic number, because the mean of its divisors is an integer number (62455849344).

Almost surely, 2^{1240566443652} is an apocalyptic number.

1240566443652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1240566443652 is an abundant number, since it is smaller than the sum of its proper divisors (1757314324860).

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

1240566443652 is a wasteful number, since it uses less digits than its factorization.

1240566443652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30980208 (or 30980206 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 48.

The spelling of 1240566443652 in words is "one trillion, two hundred forty billion, five hundred sixty-six million, four hundred forty-three thousand, six hundred fifty-two".