1671542544 has 160 divisors (see below), whose sum is σ = 5246449920. Its totient is φ = 447676416.

The previous prime is 1671542531. The next prime is 1671542591. The reversal of 1671542544 is 4452451761.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2015922 + ... + 2016750.

It is an arithmetic number, because the mean of its divisors is an integer number (32790312).

Almost surely, 2^1671542544 is an apocalyptic number.

1671542544 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1671542544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2623224960).

1671542544 is an abundant number, since it is smaller than the sum of its proper divisors (3574907376).

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

1671542544 is a wasteful number, since it uses less digits than its factorization.

1671542544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1217 (or 1211 counting only the distinct ones).

The product of its digits is 134400, while the sum is 39.

The square root of 1671542544 is about 40884.5024917755. The cubic root of 1671542544 is about 1186.7861741921.

The spelling of 1671542544 in words is "one billion, six hundred seventy-one million, five hundred forty-two thousand, five hundred forty-four".