40101544445544 has 40 divisors (see below), whose sum is σ = 112321455509010. Its totient is φ = 13367181481632.

The previous prime is 40101544445537. The next prime is 40101544445549. The reversal of 40101544445544 is 44554444510104.

40101544445544 is a `hidden beast` number, since 4 + 0 + 1 + 0 + 1 + 54 + 4 + 44 + 554 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 39149573469444 + 951970976100 = 6256962^2 + 975690^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40101544445544.

It is not an unprimeable number, because it can be changed into a prime (40101544445549) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 30942549079 + ... + 30942550374.

Almost surely, 2^{40101544445544} is an apocalyptic number.

It is an amenable number.

40101544445544 is an abundant number, since it is smaller than the sum of its proper divisors (72219911063466).

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

40101544445544 is a wasteful number, since it uses less digits than its factorization.

40101544445544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61885099471 (or 61885099458 counting only the distinct ones).

The product of its (nonzero) digits is 2048000, while the sum is 45.

Adding to 40101544445544 its reverse (44554444510104), we get a palindrome (84655988955648).

The spelling of 40101544445544 in words is "forty trillion, one hundred one billion, five hundred forty-four million, four hundred forty-five thousand, five hundred forty-four".