1660364140 has 12 divisors (see below), whose sum is σ = 3486764736. Its totient is φ = 664145648.

The previous prime is 1660364119. The next prime is 1660364141. The reversal of 1660364140 is 414630661.

It is not an unprimeable number, because it can be changed into a prime (1660364141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41509084 + ... + 41509123.

It is an arithmetic number, because the mean of its divisors is an integer number (290563728).

Almost surely, 2^1660364140 is an apocalyptic number.

1660364140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1660364140 is an abundant number, since it is smaller than the sum of its proper divisors (1826400596).

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

1660364140 is a wasteful number, since it uses less digits than its factorization.

1660364140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83018216 (or 83018214 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 1660364140 is about 40747.5660622816. The cubic root of 1660364140 is about 1184.1347193842.

The spelling of 1660364140 in words is "one billion, six hundred sixty million, three hundred sixty-four thousand, one hundred forty".