1244212453660 has 48 divisors (see below), whose sum is σ = 2850644829312. Its totient is φ = 452398478400.

The previous prime is 1244212453657. The next prime is 1244212453661. The reversal of 1244212453660 is 663542124421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244212453661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2136379 + ... + 2655661.

It is an arithmetic number, because the mean of its divisors is an integer number (59388433944).

Almost surely, 2^{1244212453660} is an apocalyptic number.

1244212453660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1244212453660 is an abundant number, since it is smaller than the sum of its proper divisors (1606432375652).

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

1244212453660 is a wasteful number, since it uses less digits than its factorization.

1244212453660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530194 (or 530192 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 40.

The spelling of 1244212453660 in words is "one trillion, two hundred forty-four billion, two hundred twelve million, four hundred fifty-three thousand, six hundred sixty".