20148001475 has 24 divisors (see below), whose sum is σ = 28568305440. Its totient is φ = 13808171520.

The previous prime is 20148001441. The next prime is 20148001477. The reversal of 20148001475 is 57410084102.

It is a happy number.

It is not a de Polignac number, because 20148001475 - 2⁶ = 20148001411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20148001477) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 297041 + ... + 358509.

It is an arithmetic number, because the mean of its divisors is an integer number (1190346060).

Almost surely, 2^20148001475 is an apocalyptic number.

20148001475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20148001475 is a deficient number, since it is larger than the sum of its proper divisors (8420303965).

20148001475 is a wasteful number, since it uses less digits than its factorization.

20148001475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63359 (or 63354 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 32.

Adding to 20148001475 its reverse (57410084102), we get a palindrome (77558085577).

The spelling of 20148001475 in words is "twenty billion, one hundred forty-eight million, one thousand, four hundred seventy-five".