40144501142021 has 16 divisors (see below), whose sum is σ = 42361392043200. Its totient is φ = 37938028060800.

The previous prime is 40144501141991. The next prime is 40144501142047. The reversal of 40144501142021 is 12024110544104.

It is a cyclic number.

It is not a de Polignac number, because 40144501142021 - 2³⁴ = 40127321272837 is a prime.

It is a super-2 number, since 2×40144501142021² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40144501142071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95289881 + ... + 95710241.

It is an arithmetic number, because the mean of its divisors is an integer number (2647587002700).

Almost surely, 2^{40144501142021} is an apocalyptic number.

It is an amenable number.

40144501142021 is a deficient number, since it is larger than the sum of its proper divisors (2216890901179).

40144501142021 is a wasteful number, since it uses less digits than its factorization.

40144501142021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432740.

The product of its (nonzero) digits is 5120, while the sum is 29.

Adding to 40144501142021 its reverse (12024110544104), we get a palindrome (52168611686125).

The spelling of 40144501142021 in words is "forty trillion, one hundred forty-four billion, five hundred one million, one hundred forty-two thousand, twenty-one".