103751660661 has 24 divisors (see below), whose sum is σ = 160057668960. Its totient is φ = 59570327520.

The previous prime is 103751660651. The next prime is 103751660707. The reversal of 103751660661 is 166066157301.

It is a happy number.

It is not a de Polignac number, because 103751660661 - 2¹¹ = 103751658613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103751660651) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7514610 + ... + 7528403.

It is an arithmetic number, because the mean of its divisors is an integer number (6669069540).

Almost surely, 2^103751660661 is an apocalyptic number.

103751660661 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

103751660661 is a deficient number, since it is larger than the sum of its proper divisors (56306008299).

103751660661 is a wasteful number, since it uses less digits than its factorization.

103751660661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15043057 (or 15043046 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 42.

The spelling of 103751660661 in words is "one hundred three billion, seven hundred fifty-one million, six hundred sixty thousand, six hundred sixty-one".