20506233562 has 16 divisors (see below), whose sum is σ = 31008660480. Its totient is φ = 10170050688.

The previous prime is 20506233511. The next prime is 20506233577. The reversal of 20506233562 is 26533260502.

It is a super-2 number, since 2×20506233562² (a number of 21 digits) contains 22 as substring.

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, 1779114 + ... + 1790602.

It is an arithmetic number, because the mean of its divisors is an integer number (1938041280).

Almost surely, 2^20506233562 is an apocalyptic number.

20506233562 is a deficient number, since it is larger than the sum of its proper divisors (10502426918).

20506233562 is a wasteful number, since it uses less digits than its factorization.

20506233562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18645.

The product of its (nonzero) digits is 64800, while the sum is 34.

The spelling of 20506233562 in words is "twenty billion, five hundred six million, two hundred thirty-three thousand, five hundred sixty-two".