11604151451561 has 4 divisors (see below), whose sum is σ = 11605011860352. Its totient is φ = 11603291042772.

The previous prime is 11604151451513. The next prime is 11604151451567. The reversal of 11604151451561 is 16515415140611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11604151451561 - 2²² = 11604147257257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11604151451567) 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, 430184165 + ... + 430211138.

It is an arithmetic number, because the mean of its divisors is an integer number (2901252965088).

Almost surely, 2^{11604151451561} is an apocalyptic number.

It is an amenable number.

11604151451561 is a deficient number, since it is larger than the sum of its proper divisors (860408791).

11604151451561 is an equidigital number, since it uses as much as digits as its factorization.

11604151451561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860408790.

The product of its (nonzero) digits is 72000, while the sum is 41.

The spelling of 11604151451561 in words is "eleven trillion, six hundred four billion, one hundred fifty-one million, four hundred fifty-one thousand, five hundred sixty-one".