40155255552 has 72 divisors (see below), whose sum is σ = 113158137456. Its totient is φ = 12597723136.

The previous prime is 40155255551. The next prime is 40155255577. The reversal of 40155255552 is 25555255104.

It is a super-2 number, since 2×40155255552² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40155255552.

It is not an unprimeable number, because it can be changed into a prime (40155255551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1524753 + ... + 1550864.

It is an arithmetic number, because the mean of its divisors is an integer number (1571640798).

Almost surely, 2^40155255552 is an apocalyptic number.

It is an amenable number.

40155255552 is an abundant number, since it is smaller than the sum of its proper divisors (73002881904).

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

40155255552 is a wasteful number, since it uses less digits than its factorization.

40155255552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3075653 (or 3075639 counting only the distinct ones).

The product of its (nonzero) digits is 250000, while the sum is 39.

The spelling of 40155255552 in words is "forty billion, one hundred fifty-five million, two hundred fifty-five thousand, five hundred fifty-two".