2045729656 has 32 divisors (see below), whose sum is σ = 3910662000. Its totient is φ = 1002974976.

The previous prime is 2045729627. The next prime is 2045729657. The reversal of 2045729656 is 6569275402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2045729657) 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, 187750 + ... + 198346.

Almost surely, 2^2045729656 is an apocalyptic number.

It is an amenable number.

2045729656 is a deficient number, since it is larger than the sum of its proper divisors (1864932344).

2045729656 is a wasteful number, since it uses less digits than its factorization.

2045729656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11071 (or 11067 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 46.

The square root of 2045729656 is about 45229.7430459206. The cubic root of 2045729656 is about 1269.4514042031.

The spelling of 2045729656 in words is "two billion, forty-five million, seven hundred twenty-nine thousand, six hundred fifty-six".