40143489781601 has 8 divisors (see below), whose sum is σ = 40375269448704. Its totient is φ = 39912371398480.

The previous prime is 40143489781537. The next prime is 40143489781607. The reversal of 40143489781601 is 10618798434104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40143489781601 - 2⁶ = 40143489781537 is a prime.

It is a super-2 number, since 2×40143489781601² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40143489781607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165199235 + ... + 165442056.

It is an arithmetic number, because the mean of its divisors is an integer number (5046908681088).

Almost surely, 2^{40143489781601} is an apocalyptic number.

It is an amenable number.

40143489781601 is a deficient number, since it is larger than the sum of its proper divisors (231779667103).

40143489781601 is a wasteful number, since it uses less digits than its factorization.

40143489781601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330641991.

The product of its (nonzero) digits is 4644864, while the sum is 56.

The spelling of 40143489781601 in words is "forty trillion, one hundred forty-three billion, four hundred eighty-nine million, seven hundred eighty-one thousand, six hundred one".