21603402062060 has 48 divisors (see below), whose sum is σ = 55836485334336. Its totient is φ = 6837120652032.

The previous prime is 21603402062041. The next prime is 21603402062071. The reversal of 21603402062060 is 6026020430612.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5934998747 + ... + 5935002386.

It is an arithmetic number, because the mean of its divisors is an integer number (1163260111132).

Almost surely, 2^{21603402062060} is an apocalyptic number.

21603402062060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21603402062060 is an abundant number, since it is smaller than the sum of its proper divisors (34233083272276).

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

21603402062060 is a wasteful number, since it uses less digits than its factorization.

21603402062060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11870001162 (or 11870001160 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 21603402062060 its reverse (6026020430612), we get a palindrome (27629422492672).

The spelling of 21603402062060 in words is "twenty-one trillion, six hundred three billion, four hundred two million, sixty-two thousand, sixty".