1660522452 has 12 divisors (see below), whose sum is σ = 3874552416. Its totient is φ = 553507480.

The previous prime is 1660522433. The next prime is 1660522453. The reversal of 1660522452 is 2542250661.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1660522453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69188424 + ... + 69188447.

It is an arithmetic number, because the mean of its divisors is an integer number (322879368).

Almost surely, 2^1660522452 is an apocalyptic number.

1660522452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1660522452 is an abundant number, since it is smaller than the sum of its proper divisors (2214029964).

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

1660522452 is a wasteful number, since it uses less digits than its factorization.

1660522452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138376878 (or 138376876 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 1660522452 is about 40749.5086105342. The cubic root of 1660522452 is about 1184.1723530521.

The spelling of 1660522452 in words is "one billion, six hundred sixty million, five hundred twenty-two thousand, four hundred fifty-two".