40144542501 has 16 divisors (see below), whose sum is σ = 63282038400. Its totient is φ = 22148712768.

The previous prime is 40144542499. The next prime is 40144542517. The reversal of 40144542501 is 10524544104.

It is not a de Polignac number, because 40144542501 - 2¹ = 40144542499 is a prime.

It is a super-2 number, since 2×40144542501² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40144542001) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 32958786 + ... + 32960003.

It is an arithmetic number, because the mean of its divisors is an integer number (3955127400).

Almost surely, 2^40144542501 is an apocalyptic number.

It is an amenable number.

40144542501 is a deficient number, since it is larger than the sum of its proper divisors (23137495899).

40144542501 is a wasteful number, since it uses less digits than its factorization.

40144542501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65918828.

The product of its (nonzero) digits is 12800, while the sum is 30.

The spelling of 40144542501 in words is "forty billion, one hundred forty-four million, five hundred forty-two thousand, five hundred one".