661103160 has 64 divisors (see below), whose sum is σ = 1986746400. Its totient is φ = 175988736.

The previous prime is 661103153. The next prime is 661103171. The reversal of 661103160 is 61301166.

661103160 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 661103160.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69576 + ... + 78504.

Almost surely, 2^661103160 is an apocalyptic number.

661103160 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

661103160 is an abundant number, since it is smaller than the sum of its proper divisors (1325643240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

661103160 is a wasteful number, since it uses less digits than its factorization.

661103160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9560 (or 9556 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 661103160 is about 25711.9264155761. The cubic root of 661103160 is about 871.1435879525.

The spelling of 661103160 in words is "six hundred sixty-one million, one hundred three thousand, one hundred sixty".