20260291945 has 16 divisors (see below), whose sum is σ = 25598520000. Its totient is φ = 15351225408.

The previous prime is 20260291879. The next prime is 20260291993. The reversal of 20260291945 is 54919206202.

It is not a de Polignac number, because 20260291945 - 2⁷ = 20260291817 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20260291898 and 20260291907.

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 15 ways as a sum of consecutive naturals, for example, 375531 + ... + 426079.

It is an arithmetic number, because the mean of its divisors is an integer number (1599907500).

Almost surely, 2^20260291945 is an apocalyptic number.

It is an amenable number.

20260291945 is a deficient number, since it is larger than the sum of its proper divisors (5338228055).

20260291945 is a wasteful number, since it uses less digits than its factorization.

20260291945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54792.

The product of its (nonzero) digits is 77760, while the sum is 40.

The spelling of 20260291945 in words is "twenty billion, two hundred sixty million, two hundred ninety-one thousand, nine hundred forty-five".