40101503581 has 2 divisors, whose sum is σ = 40101503582. Its totient is φ = 40101503580.

The previous prime is 40101503527. The next prime is 40101503587. The reversal of 40101503581 is 18530510104.

40101503581 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37919772900 + 2181730681 = 194730^2 + 46709^2 .

It is a cyclic number.

It is not a de Polignac number, because 40101503581 - 2¹¹ = 40101501533 is a prime.

It is a super-2 number, since 2×40101503581² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40101503587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20050751790 + 20050751791.

It is an arithmetic number, because the mean of its divisors is an integer number (20050751791).

Almost surely, 2^40101503581 is an apocalyptic number.

It is an amenable number.

40101503581 is a deficient number, since it is larger than the sum of its proper divisors (1).

40101503581 is an equidigital number, since it uses as much as digits as its factorization.

40101503581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2400, while the sum is 28.

The spelling of 40101503581 in words is "forty billion, one hundred one million, five hundred three thousand, five hundred eighty-one".