2150355503240 has 128 divisors (see below), whose sum is σ = 5549997277440. Its totient is φ = 734532074496.

The previous prime is 2150355503237. The next prime is 2150355503299. The reversal of 2150355503240 is 423055530512.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 2150355503240.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 261056402 + ... + 261064638.

It is an arithmetic number, because the mean of its divisors is an integer number (43359353730).

Almost surely, 2^{2150355503240} is an apocalyptic number.

2150355503240 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 2150355503240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2774998638720).

2150355503240 is an abundant number, since it is smaller than the sum of its proper divisors (3399641774200).

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

2150355503240 is a wasteful number, since it uses less digits than its factorization.

2150355503240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11599 (or 11595 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 35.

The spelling of 2150355503240 in words is "two trillion, one hundred fifty billion, three hundred fifty-five million, five hundred three thousand, two hundred forty".