1617113656 has 8 divisors (see below), whose sum is σ = 3032088120. Its totient is φ = 808556824.

The previous prime is 1617113653. The next prime is 1617113657. The reversal of 1617113656 is 6563117161.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1617113653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101069596 + ... + 101069611.

It is an arithmetic number, because the mean of its divisors is an integer number (379011015).

Almost surely, 2^1617113656 is an apocalyptic number.

It is an amenable number.

1617113656 is a deficient number, since it is larger than the sum of its proper divisors (1414974464).

1617113656 is a wasteful number, since it uses less digits than its factorization.

1617113656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202139213 (or 202139209 counting only the distinct ones).

The product of its digits is 22680, while the sum is 37.

The square root of 1617113656 is about 40213.3517130816. The cubic root of 1617113656 is about 1173.7623681396.

The spelling of 1617113656 in words is "one billion, six hundred seventeen million, one hundred thirteen thousand, six hundred fifty-six".