40888555981056 has 243 divisors, whose sum is σ = 137146632247443. Its totient is φ = 11681830702080.

The previous prime is 40888555981037. The next prime is 40888555981081. The reversal of 40888555981056 is 65018955588804.

It is a happy number.

The square root of 40888555981056 is 6394416.

It is a perfect power (a square), and thus also a powerful number.

40888555981056 is a `hidden beast` number, since 4 + 0 + 8 + 8 + 8 + 5 + 559 + 8 + 10 + 56 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2148514261 + ... + 2148533291.

Almost surely, 2^{40888555981056} is an apocalyptic number.

40888555981056 is the 6394416-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40888555981056

40888555981056 is an abundant number, since it is smaller than the sum of its proper divisors (96258076266387).

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

40888555981056 is an frugal number, since it uses more digits than its factorization.

40888555981056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38098 (or 19043 counting only the distinct ones).

The product of its (nonzero) digits is 552960000, while the sum is 72.

The spelling of 40888555981056 in words is "forty trillion, eight hundred eighty-eight billion, five hundred fifty-five million, nine hundred eighty-one thousand, fifty-six".