1641546256 has 45 divisors (see below), whose sum is σ = 3702319119. Its totient is φ = 703033632.

The previous prime is 1641546241. The next prime is 1641546259. The reversal of 1641546256 is 6526451461.

The square root of 1641546256 is 40516.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×1641546256² = 5389348221175235072, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1641546259) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1133725 + ... + 1135171.

Almost surely, 2^1641546256 is an apocalyptic number.

1641546256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1641546256 is the 40516-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1641546256

1641546256 is an abundant number, since it is smaller than the sum of its proper divisors (2060772863).

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

1641546256 is an frugal number, since it uses more digits than its factorization.

With its predecessor (1641546255) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (1456).

1641546256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2916 (or 1456 counting only the distinct ones).

The product of its digits is 172800, while the sum is 40.

The cubic root of 1641546256 is about 1179.6442133336.

The spelling of 1641546256 in words is "one billion, six hundred forty-one million, five hundred forty-six thousand, two hundred fifty-six".