20620152151 has 4 divisors (see below), whose sum is σ = 20624789304. Its totient is φ = 20615515000.

The previous prime is 20620152109. The next prime is 20620152191. The reversal of 20620152151 is 15125102602.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20620152151 - 2⁹ = 20620151639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20620152191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2311900 + ... + 2320801.

It is an arithmetic number, because the mean of its divisors is an integer number (5156197326).

Almost surely, 2^20620152151 is an apocalyptic number.

20620152151 is a deficient number, since it is larger than the sum of its proper divisors (4637153).

20620152151 is an equidigital number, since it uses as much as digits as its factorization.

20620152151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4637152.

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 20620152151 its reverse (15125102602), we get a palindrome (35745254753).

The spelling of 20620152151 in words is "twenty billion, six hundred twenty million, one hundred fifty-two thousand, one hundred fifty-one".