1215545233005 has 256 divisors, whose sum is σ = 2485251072000. Its totient is φ = 559773462528.

The previous prime is 1215545232973. The next prime is 1215545233009. The reversal of 1215545233005 is 5003325455121.

1215545233005 is a `hidden beast` number, since 1 + 21 + 554 + 52 + 3 + 30 + 0 + 5 = 666.

It is not a de Polignac number, because 1215545233005 - 2⁵ = 1215545232973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1215545233009) by changing a digit.

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 255 ways as a sum of consecutive naturals, for example, 366236736 + ... + 366240054.

It is an arithmetic number, because the mean of its divisors is an integer number (9708012000).

Almost surely, 2^{1215545233005} is an apocalyptic number.

1215545233005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1215545233005 is an abundant number, since it is smaller than the sum of its proper divisors (1269705838995).

1215545233005 is a wasteful number, since it uses less digits than its factorization.

1215545233005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3633 (or 3627 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

The spelling of 1215545233005 in words is "one trillion, two hundred fifteen billion, five hundred forty-five million, two hundred thirty-three thousand, five".