1081625656 has 32 divisors (see below), whose sum is σ = 2060697600. Its totient is φ = 532153440.

The previous prime is 1081625653. The next prime is 1081625687. The reversal of 1081625656 is 6565261801.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1081625653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193801 + ... + 199303.

It is an arithmetic number, because the mean of its divisors is an integer number (64396800).

Almost surely, 2^1081625656 is an apocalyptic number.

It is an amenable number.

1081625656 is a deficient number, since it is larger than the sum of its proper divisors (979071944).

1081625656 is a wasteful number, since it uses less digits than its factorization.

1081625656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5899 (or 5895 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 40.

The square root of 1081625656 is about 32888.0777182249. The cubic root of 1081625656 is about 1026.5000937567.

The spelling of 1081625656 in words is "one billion, eighty-one million, six hundred twenty-five thousand, six hundred fifty-six".