101420663644 has 12 divisors (see below), whose sum is σ = 179315916304. Its totient is φ = 50187544704.

The previous prime is 101420663623. The next prime is 101420663653. The reversal of 101420663644 is 446366024101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130696344 + ... + 130697119.

Almost surely, 2^101420663644 is an apocalyptic number.

It is an amenable number.

101420663644 is a deficient number, since it is larger than the sum of its proper divisors (77895252660).

101420663644 is a wasteful number, since it uses less digits than its factorization.

101420663644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261393564 (or 261393562 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 37.

Adding to 101420663644 its reverse (446366024101), we get a palindrome (547786687745).

The spelling of 101420663644 in words is "one hundred one billion, four hundred twenty million, six hundred sixty-three thousand, six hundred forty-four".