1229660539744 has 1152 divisors, whose sum is σ = 3542893240320. Its totient is φ = 413857382400.

The previous prime is 1229660539697. The next prime is 1229660539769. The reversal of 1229660539744 is 4479350669221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 16844664892 + ... + 16844664964.

It is an arithmetic number, because the mean of its divisors is an integer number (3075428160).

Almost surely, 2^{1229660539744} is an apocalyptic number.

1229660539744 is a gapful number since it is divisible by the number (14) 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 1229660539744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1771446620160).

1229660539744 is an abundant number, since it is smaller than the sum of its proper divisors (2313232700576).

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

1229660539744 is a wasteful number, since it uses less digits than its factorization.

1229660539744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244 (or 229 counting only the distinct ones).

The product of its (nonzero) digits is 19595520, while the sum is 58.

The spelling of 1229660539744 in words is "one trillion, two hundred twenty-nine billion, six hundred sixty million, five hundred thirty-nine thousand, seven hundred forty-four".