1215008663000 has 64 divisors (see below), whose sum is σ = 3101585778720. Its totient is φ = 441821328000.

The previous prime is 1215008662999. The next prime is 1215008663023. The reversal of 1215008663000 is 3668005121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55216667 + ... + 55238666.

Almost surely, 2^{1215008663000} is an apocalyptic number.

1215008663000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1215008663000 is an abundant number, since it is smaller than the sum of its proper divisors (1886577115720).

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

1215008663000 is a wasteful number, since it uses less digits than its factorization.

1215008663000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110455365 (or 110455351 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The spelling of 1215008663000 in words is "one trillion, two hundred fifteen billion, eight million, six hundred sixty-three thousand".