40203666601 has 12 divisors (see below), whose sum is σ = 47477030016. Its totient is φ = 33348657960.

The previous prime is 40203666593. The next prime is 40203666611. The reversal of 40203666601 is 10666630204.

It is not a de Polignac number, because 40203666601 - 2³ = 40203666593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40203666611) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2981505 + ... + 2994958.

It is an arithmetic number, because the mean of its divisors is an integer number (3956419168).

Almost surely, 2^40203666601 is an apocalyptic number.

It is an amenable number.

40203666601 is a deficient number, since it is larger than the sum of its proper divisors (7273363415).

40203666601 is an equidigital number, since it uses as much as digits as its factorization.

40203666601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5976532 (or 5976501 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 34.

The spelling of 40203666601 in words is "forty billion, two hundred three million, six hundred sixty-six thousand, six hundred one".