1655001656 has 48 divisors (see below), whose sum is σ = 3937931640. Its totient is φ = 644804160.

The previous prime is 1655001653. The next prime is 1655001683. The reversal of 1655001656 is 6561005561.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1655001653) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 187595 + ... + 196218.

Almost surely, 2^1655001656 is an apocalyptic number.

It is an amenable number.

1655001656 is an abundant number, since it is smaller than the sum of its proper divisors (2282929984).

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

1655001656 is a wasteful number, since it uses less digits than its factorization.

1655001656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383844 (or 383833 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 1655001656 is about 40681.7115667470. The cubic root of 1655001656 is about 1182.8585431271.

The spelling of 1655001656 in words is "one billion, six hundred fifty-five million, one thousand, six hundred fifty-six".