40020007601 has 16 divisors (see below), whose sum is σ = 46728576000. Its totient is φ = 34260224544.

The previous prime is 40020007583. The next prime is 40020007603. The reversal of 40020007601 is 10670002004.

It is not a de Polignac number, because 40020007601 - 2¹⁸ = 40019745457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40020007603) 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, 205376 + ... + 349598.

It is an arithmetic number, because the mean of its divisors is an integer number (2920536000).

Almost surely, 2^40020007601 is an apocalyptic number.

It is an amenable number.

40020007601 is a deficient number, since it is larger than the sum of its proper divisors (6708568399).

40020007601 is an equidigital number, since it uses as much as digits as its factorization.

40020007601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145053 (or 145039 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

Adding to 40020007601 its reverse (10670002004), we get a palindrome (50690009605).

The spelling of 40020007601 in words is "forty billion, twenty million, seven thousand, six hundred one".