20012648266 has 32 divisors (see below), whose sum is σ = 34032337920. Its totient is φ = 8756799744.

The previous prime is 20012648237. The next prime is 20012648287. The reversal of 20012648266 is 66284621002.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80506 + ... + 215653.

It is an arithmetic number, because the mean of its divisors is an integer number (1063510560).

Almost surely, 2^20012648266 is an apocalyptic number.

20012648266 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20012648266 is a deficient number, since it is larger than the sum of its proper divisors (14019689654).

20012648266 is a wasteful number, since it uses less digits than its factorization.

20012648266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296310.

The product of its (nonzero) digits is 55296, while the sum is 37.

The spelling of 20012648266 in words is "twenty billion, twelve million, six hundred forty-eight thousand, two hundred sixty-six".