20696158 has 32 divisors (see below), whose sum is σ = 37509120. Its totient is φ = 8376480.

The previous prime is 20696147. The next prime is 20696177. The reversal of 20696158 is 85169602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18108 + ... + 19216.

It is an arithmetic number, because the mean of its divisors is an integer number (1172160).

Almost surely, 2^20696158 is an apocalyptic number.

20696158 is a deficient number, since it is larger than the sum of its proper divisors (16812962).

20696158 is a wasteful number, since it uses less digits than its factorization.

20696158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1192.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 20696158 is about 4549.3030235411. The cubic root of 20696158 is about 274.5553497476. Note that the first 3 decimals are identical.

The spelling of 20696158 in words is "twenty million, six hundred ninety-six thousand, one hundred fifty-eight".