20616070 has 16 divisors (see below), whose sum is σ = 39292128. Its totient is φ = 7761280.

The previous prime is 20616041. The next prime is 20616091. The reversal of 20616070 is 7061602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60466 + ... + 60805.

It is an arithmetic number, because the mean of its divisors is an integer number (2455758).

Almost surely, 2^20616070 is an apocalyptic number.

20616070 is a deficient number, since it is larger than the sum of its proper divisors (18676058).

20616070 is a wasteful number, since it uses less digits than its factorization.

20616070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121295.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 20616070 is about 4540.4922640612. The cubic root of 20616070 is about 274.2007426575.

Adding to 20616070 its reverse (7061602), we get a palindrome (27677672).

The spelling of 20616070 in words is "twenty million, six hundred sixteen thousand, seventy".