1546820656 has 40 divisors (see below), whose sum is σ = 3158306784. Its totient is φ = 732441600.

The previous prime is 1546820617. The next prime is 1546820669. The reversal of 1546820656 is 6560286451.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16360 + ... + 57976.

Almost surely, 2^1546820656 is an apocalyptic number.

1546820656 is a gapful number since it is divisible by the number (16) 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 1546820656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1579153392).

1546820656 is an abundant number, since it is smaller than the sum of its proper divisors (1611486128).

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

1546820656 is a wasteful number, since it uses less digits than its factorization.

1546820656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41749 (or 41743 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 43.

The square root of 1546820656 is about 39329.6409340335. The cubic root of 1546820656 is about 1156.5027087632.

The spelling of 1546820656 in words is "one billion, five hundred forty-six million, eight hundred twenty thousand, six hundred fifty-six".