2126495520 has 144 divisors (see below), whose sum is σ = 7268631552. Its totient is φ = 566131200.

The previous prime is 2126495519. The next prime is 2126495533. The reversal of 2126495520 is 255946212.

2126495520 is a `hidden beast` number, since 2 + 1 + 2 + 649 + 5 + 5 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1656799 + ... + 1658081.

It is an arithmetic number, because the mean of its divisors is an integer number (50476608).

Almost surely, 2^2126495520 is an apocalyptic number.

2126495520 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 2126495520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3634315776).

2126495520 is an abundant number, since it is smaller than the sum of its proper divisors (5142136032).

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

2126495520 is a wasteful number, since it uses less digits than its factorization.

2126495520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2455 (or 2444 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 2126495520 is about 46113.9406253684. The cubic root of 2126495520 is about 1285.9423248427.

The spelling of 2126495520 in words is "two billion, one hundred twenty-six million, four hundred ninety-five thousand, five hundred twenty".