1660601532 has 12 divisors (see below), whose sum is σ = 3874736936. Its totient is φ = 553533840.

The previous prime is 1660601519. The next prime is 1660601533. The reversal of 1660601532 is 2351060661.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1660601532.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1660601533) 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, 69191719 + ... + 69191742.

Almost surely, 2^1660601532 is an apocalyptic number.

1660601532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1660601532 is an abundant number, since it is smaller than the sum of its proper divisors (2214135404).

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

1660601532 is a wasteful number, since it uses less digits than its factorization.

1660601532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138383468 (or 138383466 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 1660601532 is about 40750.4789174311. The cubic root of 1660601532 is about 1184.1911509236.

The spelling of 1660601532 in words is "one billion, six hundred sixty million, six hundred one thousand, five hundred thirty-two".