101520868651 has 16 divisors (see below), whose sum is σ = 109772236800. Its totient is φ = 93536345728.

The previous prime is 101520868649. The next prime is 101520868711. The reversal of 101520868651 is 156868025101.

It is not a de Polignac number, because 101520868651 - 2¹ = 101520868649 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101520868598 and 101520868607.

It is not an unprimeable number, because it can be changed into a prime (101520868601) 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 15 ways as a sum of consecutive naturals, for example, 27966 + ... + 451468.

It is an arithmetic number, because the mean of its divisors is an integer number (6860764800).

Almost surely, 2^101520868651 is an apocalyptic number.

101520868651 is a deficient number, since it is larger than the sum of its proper divisors (8251368149).

101520868651 is a wasteful number, since it uses less digits than its factorization.

101520868651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423818.

The product of its (nonzero) digits is 115200, while the sum is 43.

The spelling of 101520868651 in words is "one hundred one billion, five hundred twenty million, eight hundred sixty-eight thousand, six hundred fifty-one".