20616305446 has 16 divisors (see below), whose sum is σ = 33750542160. Its totient is φ = 9366945280.

The previous prime is 20616305431. The next prime is 20616305473. The reversal of 20616305446 is 64450361602.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 153451 + ... + 254518.

It is an arithmetic number, because the mean of its divisors is an integer number (2109408885).

Almost surely, 2^20616305446 is an apocalyptic number.

20616305446 is a deficient number, since it is larger than the sum of its proper divisors (13134236714).

20616305446 is a wasteful number, since it uses less digits than its factorization.

20616305446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410279.

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 20616305446 in words is "twenty billion, six hundred sixteen million, three hundred five thousand, four hundred forty-six".