20061716 has 6 divisors (see below), whose sum is σ = 35108010. Its totient is φ = 10030856.

The previous prime is 20061673. The next prime is 20061737. The reversal of 20061716 is 61716002.

It can be written as a sum of positive squares in only one way, i.e., 13322500 + 6739216 = 3650^2 + 2596^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20061691 and 20061700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2507711 + ... + 2507718.

It is an arithmetic number, because the mean of its divisors is an integer number (5851335).

Almost surely, 2^20061716 is an apocalyptic number.

It is an amenable number.

20061716 is a deficient number, since it is larger than the sum of its proper divisors (15046294).

20061716 is a wasteful number, since it uses less digits than its factorization.

20061716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5015433 (or 5015431 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 20061716 is about 4479.0306987115. The cubic root of 20061716 is about 271.7206799566.

Adding to 20061716 its reverse (61716002), we get a palindrome (81777718).

It can be divided in two parts, 200 and 61716, that added together give a palindrome (61916).

The spelling of 20061716 in words is "twenty million, sixty-one thousand, seven hundred sixteen".