2215907746136 has 96 divisors (see below), whose sum is σ = 4931829686880. Its totient is φ = 930460608000.

The previous prime is 2215907746133. The next prime is 2215907746159. The reversal of 2215907746136 is 6316477095122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2215907746133) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 4064606 + ... + 4577426.

It is an arithmetic number, because the mean of its divisors is an integer number (51373225905).

Almost surely, 2^{2215907746136} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2215907746136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2465914843440).

2215907746136 is an abundant number, since it is smaller than the sum of its proper divisors (2715921940744).

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

2215907746136 is a wasteful number, since it uses less digits than its factorization.

2215907746136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513065 (or 513054 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 53.

The spelling of 2215907746136 in words is "two trillion, two hundred fifteen billion, nine hundred seven million, seven hundred forty-six thousand, one hundred thirty-six".