2153663561630 has 64 divisors (see below), whose sum is σ = 4667750530560. Its totient is φ = 698909088384.

The previous prime is 2153663561597. The next prime is 2153663561639. The reversal of 2153663561630 is 361653663512.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2153663561639) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 760769 + ... + 2210451.

It is an arithmetic number, because the mean of its divisors is an integer number (72933602040).

Almost surely, 2^{2153663561630} is an apocalyptic number.

2153663561630 is an abundant number, since it is smaller than the sum of its proper divisors (2514086968930).

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

2153663561630 is a wasteful number, since it uses less digits than its factorization.

2153663561630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1450833.

The product of its (nonzero) digits is 1749600, while the sum is 47.

The spelling of 2153663561630 in words is "two trillion, one hundred fifty-three billion, six hundred sixty-three million, five hundred sixty-one thousand, six hundred thirty".