11226561651 has 6 divisors (see below), whose sum is σ = 16216144620. Its totient is φ = 7484374428.

The previous prime is 11226561649. The next prime is 11226561667. The reversal of 11226561651 is 15616562211.

11226561651 is a `hidden beast` number, since 1 + 12 + 26 + 5 + 616 + 5 + 1 = 666.

It is not a de Polignac number, because 11226561651 - 2¹ = 11226561649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11226561631) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 623697861 + ... + 623697878.

It is an arithmetic number, because the mean of its divisors is an integer number (2702690770).

Almost surely, 2^11226561651 is an apocalyptic number.

11226561651 is a deficient number, since it is larger than the sum of its proper divisors (4989582969).

11226561651 is a wasteful number, since it uses less digits than its factorization.

11226561651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1247395745 (or 1247395742 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The spelling of 11226561651 in words is "eleven billion, two hundred twenty-six million, five hundred sixty-one thousand, six hundred fifty-one".