20549799662 has 8 divisors (see below), whose sum is σ = 35228228016. Its totient is φ = 8807056992.

The previous prime is 20549799661. The next prime is 20549799701. The reversal of 20549799662 is 26699794502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20549799662² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20549799661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 733921403 + ... + 733921430.

It is an arithmetic number, because the mean of its divisors is an integer number (4403528502).

Almost surely, 2^20549799662 is an apocalyptic number.

20549799662 is a deficient number, since it is larger than the sum of its proper divisors (14678428354).

20549799662 is a wasteful number, since it uses less digits than its factorization.

20549799662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1467842842.

The product of its (nonzero) digits is 14696640, while the sum is 59.

The spelling of 20549799662 in words is "twenty billion, five hundred forty-nine million, seven hundred ninety-nine thousand, six hundred sixty-two".