21541355043032 has 64 divisors (see below), whose sum is σ = 44986785782400. Its totient is φ = 9587916483840.

The previous prime is 21541355043029. The next prime is 21541355043053. The reversal of 21541355043032 is 23034055314512.

It is a congruent number.

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, 11169158 + ... + 12955029.

It is an arithmetic number, because the mean of its divisors is an integer number (702918527850).

Almost surely, 2^{21541355043032} is an apocalyptic number.

21541355043032 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21541355043032 is an abundant number, since it is smaller than the sum of its proper divisors (23445430739368).

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

21541355043032 is a wasteful number, since it uses less digits than its factorization.

21541355043032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24124416 (or 24124412 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 38.

The spelling of 21541355043032 in words is "twenty-one trillion, five hundred forty-one billion, three hundred fifty-five million, forty-three thousand, thirty-two".