21160503530542 has 16 divisors (see below), whose sum is σ = 32859073285632. Its totient is φ = 10209446240760.

The previous prime is 21160503530533. The next prime is 21160503530557. The reversal of 21160503530542 is 24503530506112.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 491762988 + ... + 491806015.

It is an arithmetic number, because the mean of its divisors is an integer number (2053692080352).

Almost surely, 2^{21160503530542} is an apocalyptic number.

21160503530542 is a deficient number, since it is larger than the sum of its proper divisors (11698569755090).

21160503530542 is a wasteful number, since it uses less digits than its factorization.

21160503530542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 983569383.

The product of its (nonzero) digits is 108000, while the sum is 37.

The spelling of 21160503530542 in words is "twenty-one trillion, one hundred sixty billion, five hundred three million, five hundred thirty thousand, five hundred forty-two".