1631060660 has 24 divisors (see below), whose sum is σ = 3535719936. Its totient is φ = 631378080.

The previous prime is 1631060653. The next prime is 1631060687. The reversal of 1631060660 is 660601361.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1314752 + ... + 1315991.

It is an arithmetic number, because the mean of its divisors is an integer number (147321664).

Almost surely, 2^1631060660 is an apocalyptic number.

1631060660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1631060660 is an abundant number, since it is smaller than the sum of its proper divisors (1904659276).

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

1631060660 is a wasteful number, since it uses less digits than its factorization.

1631060660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2630783 (or 2630781 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 1631060660 is about 40386.3920151330. The cubic root of 1631060660 is about 1177.1271346435.

The spelling of 1631060660 in words is "one billion, six hundred thirty-one million, sixty thousand, six hundred sixty".