1229465552640 has 576 divisors, whose sum is σ = 4358226872832. Its totient is φ = 293422694400.

The previous prime is 1229465552639. The next prime is 1229465552669. The reversal of 1229465552640 is 462555649221.

It is a super-2 number, since 2×1229465552640² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 611369235 + ... + 611371245.

Almost surely, 2^{1229465552640} is an apocalyptic number.

1229465552640 is a gapful number since it is divisible by the number (10) 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 1229465552640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2179113436416).

1229465552640 is an abundant number, since it is smaller than the sum of its proper divisors (3128761320192).

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

1229465552640 is a wasteful number, since it uses less digits than its factorization.

1229465552640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2416 (or 2402 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 51.

The spelling of 1229465552640 in words is "one trillion, two hundred twenty-nine billion, four hundred sixty-five million, five hundred fifty-two thousand, six hundred forty".