40168620035601 has 4 divisors (see below), whose sum is σ = 53558160047472. Its totient is φ = 26779080023732.

The previous prime is 40168620035567. The next prime is 40168620035603. The reversal of 40168620035601 is 10653002686104.

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 40168620035601 - 2¹³ = 40168620027409 is a prime.

It is a super-2 number, since 2×40168620035601² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40168620035603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6694770005931 + ... + 6694770005936.

It is an arithmetic number, because the mean of its divisors is an integer number (13389540011868).

Almost surely, 2^{40168620035601} is an apocalyptic number.

It is an amenable number.

40168620035601 is a deficient number, since it is larger than the sum of its proper divisors (13389540011871).

40168620035601 is a wasteful number, since it uses less digits than its factorization.

40168620035601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13389540011870.

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 40168620035601 in words is "forty trillion, one hundred sixty-eight billion, six hundred twenty million, thirty-five thousand, six hundred one".