1660155060 has 48 divisors (see below), whose sum is σ = 4921874496. Its totient is φ = 416666112.

The previous prime is 1660155047. The next prime is 1660155061. The reversal of 1660155060 is 605510661.

It is a super-2 number, since 2×1660155060² = 5512229646487207200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1660155061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 812782 + ... + 814821.

It is an arithmetic number, because the mean of its divisors is an integer number (102539052).

Almost surely, 2^1660155060 is an apocalyptic number.

1660155060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1660155060 is an abundant number, since it is smaller than the sum of its proper divisors (3261719436).

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

1660155060 is a wasteful number, since it uses less digits than its factorization.

1660155060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1627632 (or 1627630 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 1660155060 is about 40745.0004295005. Note that the first 3 decimals coincide. The cubic root of 1660155060 is about 1184.0850135649.

The spelling of 1660155060 in words is "one billion, six hundred sixty million, one hundred fifty-five thousand, sixty".