21514522554004 has 24 divisors (see below), whose sum is σ = 39662572093760. Its totient is φ = 10183232151936.

The previous prime is 21514522553933. The next prime is 21514522554013. The reversal of 21514522554004 is 40045522541512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109032432 + ... + 109229575.

Almost surely, 2^{21514522554004} is an apocalyptic number.

It is an amenable number.

21514522554004 is a deficient number, since it is larger than the sum of its proper divisors (18148049539756).

21514522554004 is a wasteful number, since it uses less digits than its factorization.

21514522554004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218263327 (or 218263325 counting only the distinct ones).

The product of its (nonzero) digits is 320000, while the sum is 40.

The spelling of 21514522554004 in words is "twenty-one trillion, five hundred fourteen billion, five hundred twenty-two million, five hundred fifty-four thousand, four".