109956659901 has 16 divisors (see below), whose sum is σ = 161520499008. Its totient is φ = 65980592000.

The previous prime is 109956659881. The next prime is 109956659971.

109956659901 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 109956659901 - 2⁹ = 109956659389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109956659971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16491816 + ... + 16498481.

It is an arithmetic number, because the mean of its divisors is an integer number (10095031188).

Almost surely, 2^109956659901 is an apocalyptic number.

109956659901 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

109956659901 is a deficient number, since it is larger than the sum of its proper divisors (51563839107).

109956659901 is a wasteful number, since it uses less digits than its factorization.

109956659901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32990412.

The product of its (nonzero) digits is 5904900, while the sum is 60.

The spelling of 109956659901 in words is "one hundred nine billion, nine hundred fifty-six million, six hundred fifty-nine thousand, nine hundred one".