20495125345 has 16 divisors (see below), whose sum is σ = 24677395200. Its totient is φ = 16340688000.

The previous prime is 20495125337. The next prime is 20495125363. The reversal of 20495125345 is 54352159402.

It is not a de Polignac number, because 20495125345 - 2³ = 20495125337 is a prime.

It is a super-2 number, since 2×20495125345² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20495125298 and 20495125307.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2260381 + ... + 2269429.

It is an arithmetic number, because the mean of its divisors is an integer number (1542337200).

Almost surely, 2^20495125345 is an apocalyptic number.

It is an amenable number.

20495125345 is a deficient number, since it is larger than the sum of its proper divisors (4182269855).

20495125345 is a wasteful number, since it uses less digits than its factorization.

20495125345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10536.

The product of its (nonzero) digits is 216000, while the sum is 40.

The spelling of 20495125345 in words is "twenty billion, four hundred ninety-five million, one hundred twenty-five thousand, three hundred forty-five".