101420663643 has 48 divisors (see below), whose sum is σ = 161711877600. Its totient is φ = 60853363200.

The previous prime is 101420663623. The next prime is 101420663653. The reversal of 101420663643 is 346366024101.

101420663643 is a `hidden beast` number, since 1 + 0 + 1 + 4 + 2 + 0 + 6 + 6 + 3 + 643 = 666.

It is not a de Polignac number, because 101420663643 - 2⁸ = 101420663387 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101420663598 and 101420663607.

It is not an unprimeable number, because it can be changed into a prime (101420663623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9257533 + ... + 9268481.

It is an arithmetic number, because the mean of its divisors is an integer number (3368997450).

Almost surely, 2^101420663643 is an apocalyptic number.

101420663643 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

101420663643 is a deficient number, since it is larger than the sum of its proper divisors (60291213957).

101420663643 is a wasteful number, since it uses less digits than its factorization.

101420663643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12940 (or 12937 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

Adding to 101420663643 its reverse (346366024101), we get a palindrome (447786687744).

The spelling of 101420663643 in words is "one hundred one billion, four hundred twenty million, six hundred sixty-three thousand, six hundred forty-three".