20620152445 has 8 divisors (see below), whose sum is σ = 24792799320. Its totient is φ = 16463711040.

The previous prime is 20620152437. The next prime is 20620152457. The reversal of 20620152445 is 54425102602.

It can be written as a sum of positive squares in 4 ways, for example, as 3184006329 + 17436146116 = 56427^2 + 132046^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20620152445 - 2³ = 20620152437 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4048566 + ... + 4053655.

It is an arithmetic number, because the mean of its divisors is an integer number (3099099915).

Almost surely, 2^20620152445 is an apocalyptic number.

It is an amenable number.

20620152445 is a deficient number, since it is larger than the sum of its proper divisors (4172646875).

20620152445 is an equidigital number, since it uses as much as digits as its factorization.

20620152445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8102735.

The product of its (nonzero) digits is 19200, while the sum is 31.

The spelling of 20620152445 in words is "twenty billion, six hundred twenty million, one hundred fifty-two thousand, four hundred forty-five".