101520665012 has 48 divisors (see below), whose sum is σ = 192580856832. Its totient is φ = 46549261440.

The previous prime is 101520664961. The next prime is 101520665033. The reversal of 101520665012 is 210566025101.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 10225883 + ... + 10235805.

It is an arithmetic number, because the mean of its divisors is an integer number (4012101184).

Almost surely, 2^101520665012 is an apocalyptic number.

It is an amenable number.

101520665012 is a deficient number, since it is larger than the sum of its proper divisors (91060191820).

101520665012 is a wasteful number, since it uses less digits than its factorization.

101520665012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11208 (or 11206 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 29.

The spelling of 101520665012 in words is "one hundred one billion, five hundred twenty million, six hundred sixty-five thousand, twelve".