20710450499 has 16 divisors (see below), whose sum is σ = 21644249760. Its totient is φ = 19801098240.

The previous prime is 20710450493. The next prime is 20710450561. The reversal of 20710450499 is 99405401702.

It is a cyclic number.

It is not a de Polignac number, because 20710450499 - 2¹² = 20710446403 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20710450493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 387224 + ... + 437450.

It is an arithmetic number, because the mean of its divisors is an integer number (1352765610).

Almost surely, 2^20710450499 is an apocalyptic number.

20710450499 is a deficient number, since it is larger than the sum of its proper divisors (933799261).

20710450499 is a wasteful number, since it uses less digits than its factorization.

20710450499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50470.

The product of its (nonzero) digits is 90720, while the sum is 41.

The spelling of 20710450499 in words is "twenty billion, seven hundred ten million, four hundred fifty thousand, four hundred ninety-nine".