40890160643 has 2 divisors, whose sum is σ = 40890160644. Its totient is φ = 40890160642.

The previous prime is 40890160567. The next prime is 40890160669. The reversal of 40890160643 is 34606109804.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40890160643 - 2¹² = 40890156547 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40890160643.

It is not a weakly prime, because it can be changed into another prime (40892160643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20445080321 + 20445080322.

It is an arithmetic number, because the mean of its divisors is an integer number (20445080322).

Almost surely, 2^40890160643 is an apocalyptic number.

40890160643 is a deficient number, since it is larger than the sum of its proper divisors (1).

40890160643 is an equidigital number, since it uses as much as digits as its factorization.

40890160643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 41.

The spelling of 40890160643 in words is "forty billion, eight hundred ninety million, one hundred sixty thousand, six hundred forty-three".