20061516 has 24 divisors (see below), whose sum is σ = 47267584. Its totient is φ = 6621840.

The previous prime is 20061499. The next prime is 20061523. The reversal of 20061516 is 61516002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20061492 and 20061501.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6880 + ... + 9351.

Almost surely, 2^20061516 is an apocalyptic number.

It is an amenable number.

20061516 is an abundant number, since it is smaller than the sum of its proper divisors (27206068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20061516 is a wasteful number, since it uses less digits than its factorization.

20061516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16341 (or 16339 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 20061516 is about 4479.0083723967. The cubic root of 20061516 is about 271.7197770043.

Adding to 20061516 its reverse (61516002), we get a palindrome (81577518).

It can be divided in two parts, 200 and 61516, that added together give a palindrome (61716).

The spelling of 20061516 in words is "twenty million, sixty-one thousand, five hundred sixteen".