11161601206651 has 4 divisors (see below), whose sum is σ = 12756115664752. Its totient is φ = 9567086748552.

The previous prime is 11161601206633. The next prime is 11161601206687. The reversal of 11161601206651 is 15660210616111.

11161601206651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11161601206651 - 2⁵ = 11161601206619 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11161601206651.

It is not an unprimeable number, because it can be changed into a prime (11161601206601) 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, 797257229040 + ... + 797257229053.

It is an arithmetic number, because the mean of its divisors is an integer number (3189028916188).

Almost surely, 2^{11161601206651} is an apocalyptic number.

11161601206651 is a deficient number, since it is larger than the sum of its proper divisors (1594514458101).

11161601206651 is an equidigital number, since it uses as much as digits as its factorization.

11161601206651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1594514458100.

The product of its (nonzero) digits is 12960, while the sum is 37.

The spelling of 11161601206651 in words is "eleven trillion, one hundred sixty-one billion, six hundred one million, two hundred six thousand, six hundred fifty-one".