2261544472240 has 20 divisors (see below), whose sum is σ = 5258090898144. Its totient is φ = 904617788864.

The previous prime is 2261544472223. The next prime is 2261544472261. The reversal of 2261544472240 is 422744451622.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×2261544472240² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14134652872 + ... + 14134653031.

Almost surely, 2^{2261544472240} is an apocalyptic number.

2261544472240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2261544472240 is an abundant number, since it is smaller than the sum of its proper divisors (2996546425904).

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

2261544472240 is a wasteful number, since it uses less digits than its factorization.

2261544472240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28269305916 (or 28269305910 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 43.

The spelling of 2261544472240 in words is "two trillion, two hundred sixty-one billion, five hundred forty-four million, four hundred seventy-two thousand, two hundred forty".