108721151999999 has 16 divisors (see below), whose sum is σ = 135559400305920. Its totient is φ = 84710936367360.

The previous prime is 108721151999987. The next prime is 108721152000007. The reversal of 108721151999999 is 999999151127801.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 108721151999999 - 2⁴ = 108721151999983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108721151999599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56077394 + ... + 57983759.

It is an arithmetic number, because the mean of its divisors is an integer number (8472462519120).

Almost surely, 2^{108721151999999} is an apocalyptic number.

108721151999999 is a deficient number, since it is larger than the sum of its proper divisors (26838248305921).

108721151999999 is a wasteful number, since it uses less digits than its factorization.

108721151999999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114073550.

The product of its (nonzero) digits is 297606960, while the sum is 80.

The spelling of 108721151999999 in words is "one hundred eight trillion, seven hundred twenty-one billion, one hundred fifty-one million, nine hundred ninety-nine thousand, nine hundred ninety-nine".