21653051452534 has 32 divisors (see below), whose sum is σ = 32677085327040. Its totient is φ = 10760795136000.

The previous prime is 21653051452523. The next prime is 21653051452573. The reversal of 21653051452534 is 43525415035612.

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, 2945588959 + ... + 2945596309.

It is an arithmetic number, because the mean of its divisors is an integer number (1021158916470).

Almost surely, 2^{21653051452534} is an apocalyptic number.

21653051452534 is a deficient number, since it is larger than the sum of its proper divisors (11024033874506).

21653051452534 is a wasteful number, since it uses less digits than its factorization.

21653051452534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13336.

The product of its (nonzero) digits is 2160000, while the sum is 46.

The spelling of 21653051452534 in words is "twenty-one trillion, six hundred fifty-three billion, fifty-one million, four hundred fifty-two thousand, five hundred thirty-four".