21653003061160 has 32 divisors (see below), whose sum is σ = 49069755151200. Its totient is φ = 8598890422080.

The previous prime is 21653003061133. The next prime is 21653003061163. The reversal of 21653003061160 is 6116030035612.

It is not an unprimeable number, because it can be changed into a prime (21653003061163) 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, 1947206946 + ... + 1947218065.

It is an arithmetic number, because the mean of its divisors is an integer number (1533429848475).

Almost surely, 2^{21653003061160} is an apocalyptic number.

21653003061160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21653003061160 is an abundant number, since it is smaller than the sum of its proper divisors (27416752090040).

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

21653003061160 is a wasteful number, since it uses less digits than its factorization.

21653003061160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3894425161 (or 3894425157 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 34.

Adding to 21653003061160 its reverse (6116030035612), we get a palindrome (27769033096772).

The spelling of 21653003061160 in words is "twenty-one trillion, six hundred fifty-three billion, three million, sixty-one thousand, one hundred sixty".