20535542022 has 16 divisors (see below), whose sum is σ = 41944937472. Its totient is φ = 6699538440.

The previous prime is 20535541997. The next prime is 20535542033. The reversal of 20535542022 is 22024553502.

It is a super-2 number, since 2×20535542022² (a number of 21 digits) contains 22 as substring.

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, 36410254 + ... + 36410817.

It is an arithmetic number, because the mean of its divisors is an integer number (2621558592).

Almost surely, 2^20535542022 is an apocalyptic number.

20535542022 is an abundant number, since it is smaller than the sum of its proper divisors (21409395450).

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

20535542022 is a wasteful number, since it uses less digits than its factorization.

20535542022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72821123.

The product of its (nonzero) digits is 24000, while the sum is 30.

The spelling of 20535542022 in words is "twenty billion, five hundred thirty-five million, five hundred forty-two thousand, twenty-two".