20370164 has 6 divisors (see below), whose sum is σ = 35647794. Its totient is φ = 10185080.

The previous prime is 20370149. The next prime is 20370167. The reversal of 20370164 is 46107302.

It can be written as a sum of positive squares in only one way, i.e., 10510564 + 9859600 = 3242^2 + 3140^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20370167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2546267 + ... + 2546274.

It is an arithmetic number, because the mean of its divisors is an integer number (5941299).

Almost surely, 2^20370164 is an apocalyptic number.

It is an amenable number.

20370164 is a deficient number, since it is larger than the sum of its proper divisors (15277630).

20370164 is a wasteful number, since it uses less digits than its factorization.

20370164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5092545 (or 5092543 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 20370164 is about 4513.3318069914. The cubic root of 20370164 is about 273.1061679227.

Adding to 20370164 its reverse (46107302), we get a palindrome (66477466).

The spelling of 20370164 in words is "twenty million, three hundred seventy thousand, one hundred sixty-four".