20354552542 has 16 divisors (see below), whose sum is σ = 31281748992. Its totient is φ = 9928696120.

The previous prime is 20354552527. The next prime is 20354552563. The reversal of 20354552542 is 24525545302.

It is a super-3 number, since 3×20354552542³ (a number of 32 digits) contains 333 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, 318898 + ... + 377365.

It is an arithmetic number, because the mean of its divisors is an integer number (1955109312).

Almost surely, 2^20354552542 is an apocalyptic number.

20354552542 is a deficient number, since it is larger than the sum of its proper divisors (10927196450).

20354552542 is a wasteful number, since it uses less digits than its factorization.

20354552542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696623.

The product of its (nonzero) digits is 240000, while the sum is 37.

The spelling of 20354552542 in words is "twenty billion, three hundred fifty-four million, five hundred fifty-two thousand, five hundred forty-two".