40144155345 has 24 divisors (see below), whose sum is σ = 79523660736. Its totient is φ = 18351613728.

The previous prime is 40144155277. The next prime is 40144155371. The reversal of 40144155345 is 54355144104.

It is not a de Polignac number, because 40144155345 - 2⁹ = 40144154833 is a prime.

It is a super-2 number, since 2×40144155345² (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 (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63720567 + ... + 63721196.

It is an arithmetic number, because the mean of its divisors is an integer number (3313485864).

Almost surely, 2^40144155345 is an apocalyptic number.

40144155345 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40144155345 is a deficient number, since it is larger than the sum of its proper divisors (39379505391).

40144155345 is a wasteful number, since it uses less digits than its factorization.

40144155345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127441781 (or 127441778 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

Adding to 40144155345 its reverse (54355144104), we get a palindrome (94499299449).

The spelling of 40144155345 in words is "forty billion, one hundred forty-four million, one hundred fifty-five thousand, three hundred forty-five".