2115225016840 has 192 divisors, whose sum is σ = 5380696823040. Its totient is φ = 746616499200.

The previous prime is 2115225016819. The next prime is 2115225016859. The reversal of 2115225016840 is 486105225112.

It is a self number, because there is not a number n which added to its sum of digits gives 2115225016840.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 396626814 + ... + 396632146.

It is an arithmetic number, because the mean of its divisors is an integer number (28024462620).

Almost surely, 2^{2115225016840} is an apocalyptic number.

2115225016840 is a gapful number since it is divisible by the number (20) 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 2115225016840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2690348411520).

2115225016840 is an abundant number, since it is smaller than the sum of its proper divisors (3265471806200).

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

2115225016840 is a wasteful number, since it uses less digits than its factorization.

2115225016840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7944 (or 7927 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 37.

The spelling of 2115225016840 in words is "two trillion, one hundred fifteen billion, two hundred twenty-five million, sixteen thousand, eight hundred forty".