1671929664 has 56 divisors (see below), whose sum is σ = 4446666240. Its totient is φ = 554409984.

The previous prime is 1671929653. The next prime is 1671929671. The reversal of 1671929664 is 4669291761.

1671929664 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14497 + ... + 59615.

Almost surely, 2^1671929664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1671929664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2223333120).

1671929664 is an abundant number, since it is smaller than the sum of its proper divisors (2774736576).

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

1671929664 is a wasteful number, since it uses less digits than its factorization.

1671929664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45327 (or 45317 counting only the distinct ones).

The product of its digits is 979776, while the sum is 51.

The square root of 1671929664 is about 40889.2365299231. The cubic root of 1671929664 is about 1186.8777848230.

The spelling of 1671929664 in words is "one billion, six hundred seventy-one million, nine hundred twenty-nine thousand, six hundred sixty-four".