1655435656 has 32 divisors (see below), whose sum is σ = 3756032640. Its totient is φ = 667738368.

The previous prime is 1655435653. The next prime is 1655435657. The reversal of 1655435656 is 6565345561.

It is a super-2 number, since 2×1655435656² = 5480934422312300672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1655435653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 868500 + ... + 870403.

It is an arithmetic number, because the mean of its divisors is an integer number (117376020).

Almost surely, 2^1655435656 is an apocalyptic number.

It is an amenable number.

1655435656 is an abundant number, since it is smaller than the sum of its proper divisors (2100596984).

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

1655435656 is a wasteful number, since it uses less digits than its factorization.

1655435656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1738933 (or 1738929 counting only the distinct ones).

The product of its digits is 1620000, while the sum is 46.

The square root of 1655435656 is about 40687.0453092873. The cubic root of 1655435656 is about 1182.9619298797.

The spelling of 1655435656 in words is "one billion, six hundred fifty-five million, four hundred thirty-five thousand, six hundred fifty-six".