11061115651 has 4 divisors (see below), whose sum is σ = 11080487704. Its totient is φ = 11041743600.

The previous prime is 11061115589. The next prime is 11061115661. The reversal of 11061115651 is 15651116011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15651116011 = 17 ⋅920653883.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11061115651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11061115661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9685170 + ... + 9686311.

It is an arithmetic number, because the mean of its divisors is an integer number (2770121926).

Almost surely, 2^11061115651 is an apocalyptic number.

11061115651 is a deficient number, since it is larger than the sum of its proper divisors (19372053).

11061115651 is an equidigital number, since it uses as much as digits as its factorization.

11061115651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19372052.

The product of its (nonzero) digits is 900, while the sum is 28.

The spelling of 11061115651 in words is "eleven billion, sixty-one million, one hundred fifteen thousand, six hundred fifty-one".