20701392946 has 16 divisors (see below), whose sum is σ = 33684810264. Its totient is φ = 9484746624.

The previous prime is 20701392941. The next prime is 20701392947. The reversal of 20701392946 is 64929310702.

It can be written as a sum of positive squares in 4 ways, for example, as 18666390625 + 2035002321 = 136625^2 + 45111^2 .

It is not an unprimeable number, because it can be changed into a prime (20701392941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2902305 + ... + 2909428.

Almost surely, 2^20701392946 is an apocalyptic number.

20701392946 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20701392946 is a deficient number, since it is larger than the sum of its proper divisors (12983417318).

20701392946 is a wasteful number, since it uses less digits than its factorization.

20701392946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5811885.

The product of its (nonzero) digits is 163296, while the sum is 43.

The spelling of 20701392946 in words is "twenty billion, seven hundred one million, three hundred ninety-two thousand, nine hundred forty-six".