1671513660 has 72 divisors (see below), whose sum is σ = 5156227440. Its totient is φ = 438179328.

The previous prime is 1671513653. The next prime is 1671513689. The reversal of 1671513660 is 663151761.

1671513660 is a `hidden beast` number, since 16 + 71 + 513 + 6 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68077 + ... + 89316.

It is an arithmetic number, because the mean of its divisors is an integer number (71614270).

Almost surely, 2^1671513660 is an apocalyptic number.

1671513660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1671513660 is an abundant number, since it is smaller than the sum of its proper divisors (3484713780).

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

1671513660 is a wasteful number, since it uses less digits than its factorization.

1671513660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157467 (or 157462 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 1671513660 is about 40884.1492512685. The cubic root of 1671513660 is about 1186.7793383247.

The spelling of 1671513660 in words is "one billion, six hundred seventy-one million, five hundred thirteen thousand, six hundred sixty".