11605605451 has 8 divisors (see below), whose sum is σ = 12676281408. Its totient is φ = 10537533000.

The previous prime is 11605605437. The next prime is 11605605457. The reversal of 11605605451 is 15450650611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11605605451 - 2⁹ = 11605604939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11605605457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 641545 + ... + 659386.

It is an arithmetic number, because the mean of its divisors is an integer number (1584535176).

Almost surely, 2^11605605451 is an apocalyptic number.

11605605451 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11605605451 is a deficient number, since it is larger than the sum of its proper divisors (1070675957).

11605605451 is a wasteful number, since it uses less digits than its factorization.

11605605451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301753.

The product of its (nonzero) digits is 18000, while the sum is 34.

The spelling of 11605605451 in words is "eleven billion, six hundred five million, six hundred five thousand, four hundred fifty-one".