20610131475 has 48 divisors (see below), whose sum is σ = 36411107040. Its totient is φ = 10250496000.

The previous prime is 20610131473. The next prime is 20610131489. The reversal of 20610131475 is 57413101602.

It is not a de Polignac number, because 20610131475 - 2¹ = 20610131473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20610131473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 64825 + ... + 213125.

It is an arithmetic number, because the mean of its divisors is an integer number (758564730).

Almost surely, 2^20610131475 is an apocalyptic number.

20610131475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20610131475 is a deficient number, since it is larger than the sum of its proper divisors (15800975565).

20610131475 is a wasteful number, since it uses less digits than its factorization.

20610131475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148440 (or 148435 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The spelling of 20610131475 in words is "twenty billion, six hundred ten million, one hundred thirty-one thousand, four hundred seventy-five".