2261139753600 has 1920 divisors, whose sum is σ = 10875691411200. Its totient is φ = 448932741120.

The previous prime is 2261139753559. The next prime is 2261139753623. The reversal of 2261139753600 is 63579311622.

2261139753600 is a `hidden beast` number, since 2 + 2 + 6 + 1 + 1 + 39 + 7 + 5 + 3 + 600 = 666.

It is a tau number, because it is divible by the number of its divisors (1920).

It is a super-2 number, since 2×2261139753600² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 400979581 + ... + 400985219.

It is an arithmetic number, because the mean of its divisors is an integer number (5664422610).

Almost surely, 2^{2261139753600} is an apocalyptic number.

2261139753600 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 2261139753600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5437845705600).

2261139753600 is an abundant number, since it is smaller than the sum of its proper divisors (8614551657600).

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

2261139753600 is a wasteful number, since it uses less digits than its factorization.

2261139753600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5712 (or 5686 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The spelling of 2261139753600 in words is "two trillion, two hundred sixty-one billion, one hundred thirty-nine million, seven hundred fifty-three thousand, six hundred".