40115542544 has 40 divisors (see below), whose sum is σ = 96902482368. Its totient is φ = 15629431680.

The previous prime is 40115542541. The next prime is 40115542553. The reversal of 40115542544 is 44524551104.

It is not an unprimeable number, because it can be changed into a prime (40115542541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16279427 + ... + 16281890.

Almost surely, 2^40115542544 is an apocalyptic number.

40115542544 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

40115542544 is an abundant number, since it is smaller than the sum of its proper divisors (56786939824).

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

40115542544 is a wasteful number, since it uses less digits than its factorization.

40115542544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32561343 (or 32561337 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 35.

The spelling of 40115542544 in words is "forty billion, one hundred fifteen million, five hundred forty-two thousand, five hundred forty-four".