40155302144 has 72 divisors (see below), whose sum is σ = 81201415680. Its totient is φ = 19816908800.

The previous prime is 40155302113. The next prime is 40155302167. The reversal of 40155302144 is 44120355104.

It is a super-2 number, since 2×40155302144² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

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, 6402242 + ... + 6408510.

It is an arithmetic number, because the mean of its divisors is an integer number (1127797440).

Almost surely, 2^40155302144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40155302144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40600707840).

40155302144 is an abundant number, since it is smaller than the sum of its proper divisors (41046113536).

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

40155302144 is a wasteful number, since it uses less digits than its factorization.

40155302144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6607 (or 6593 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 40155302144 its reverse (44120355104), we get a palindrome (84275657248).

The spelling of 40155302144 in words is "forty billion, one hundred fifty-five million, three hundred two thousand, one hundred forty-four".