1640361363031 has 2 divisors, whose sum is σ = 1640361363032. Its totient is φ = 1640361363030.

The previous prime is 1640361362993. The next prime is 1640361363037. The reversal of 1640361363031 is 1303631630461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1640361363031 - 2⁷ = 1640361362903 is a prime.

It is a super-2 number, since 2×1640361363031² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1640361363037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 820180681515 + 820180681516.

It is an arithmetic number, because the mean of its divisors is an integer number (820180681516).

Almost surely, 2^{1640361363031} is an apocalyptic number.

1640361363031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1640361363031 is an equidigital number, since it uses as much as digits as its factorization.

1640361363031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 37.

Adding to 1640361363031 its reverse (1303631630461), we get a palindrome (2943992993492).

The spelling of 1640361363031 in words is "one trillion, six hundred forty billion, three hundred sixty-one million, three hundred sixty-three thousand, thirty-one".