2055661630 has 32 divisors (see below), whose sum is σ = 4050412128. Its totient is φ = 744950400.

The previous prime is 2055661613. The next prime is 2055661667. The reversal of 2055661630 is 361665502.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 340 + ... + 64120.

It is an arithmetic number, because the mean of its divisors is an integer number (126575379).

Almost surely, 2^2055661630 is an apocalyptic number.

2055661630 is a deficient number, since it is larger than the sum of its proper divisors (1994750498).

2055661630 is a wasteful number, since it uses less digits than its factorization.

2055661630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64092.

The product of its (nonzero) digits is 32400, while the sum is 34.

The square root of 2055661630 is about 45339.4048262656. The cubic root of 2055661630 is about 1271.5024750027.

The spelling of 2055661630 in words is "two billion, fifty-five million, six hundred sixty-one thousand, six hundred thirty".