40663448658001 has 4 divisors (see below), whose sum is σ = 43791406247092. Its totient is φ = 37535491068912.

The previous prime is 40663448657941. The next prime is 40663448658031. The reversal of 40663448658001 is 10085684436604.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9500258898001 + 31163189760000 = 3082249^2 + 5582400^2 .

It is a cyclic number.

It is not a de Polignac number, because 40663448658001 - 2²³ = 40663440269393 is a prime.

It is a super-2 number, since 2×40663448658001² (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 (40663448658031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1563978794526 + ... + 1563978794551.

It is an arithmetic number, because the mean of its divisors is an integer number (10947851561773).

Almost surely, 2^{40663448658001} is an apocalyptic number.

It is an amenable number.

40663448658001 is a deficient number, since it is larger than the sum of its proper divisors (3127957589091).

40663448658001 is a wasteful number, since it uses less digits than its factorization.

40663448658001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3127957589090.

The product of its (nonzero) digits is 13271040, while the sum is 55.

The spelling of 40663448658001 in words is "forty trillion, six hundred sixty-three billion, four hundred forty-eight million, six hundred fifty-eight thousand, one".