40136668141 has 4 divisors (see below), whose sum is σ = 41070079072. Its totient is φ = 39203257212.

The previous prime is 40136668129. The next prime is 40136668151. The reversal of 40136668141 is 14186663104.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40136668141 - 2³³ = 31546733549 is a prime.

It is a super-2 number, since 2×40136668141² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40136668094 and 40136668103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40136668151) 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, 466705401 + ... + 466705486.

It is an arithmetic number, because the mean of its divisors is an integer number (10267519768).

Almost surely, 2^40136668141 is an apocalyptic number.

It is an amenable number.

40136668141 is a deficient number, since it is larger than the sum of its proper divisors (933410931).

40136668141 is an equidigital number, since it uses as much as digits as its factorization.

40136668141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933410930.

The product of its (nonzero) digits is 82944, while the sum is 40.

The spelling of 40136668141 in words is "forty billion, one hundred thirty-six million, six hundred sixty-eight thousand, one hundred forty-one".