9155468661 has 4 divisors (see below), whose sum is σ = 12207291552. Its totient is φ = 6103645772.

The previous prime is 9155468657. The next prime is 9155468671. The reversal of 9155468661 is 1668645519.

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 9155468661 - 2² = 9155468657 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9155468671) 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, 1525911441 + ... + 1525911446.

It is an arithmetic number, because the mean of its divisors is an integer number (3051822888).

Almost surely, 2^9155468661 is an apocalyptic number.

It is an amenable number.

9155468661 is a deficient number, since it is larger than the sum of its proper divisors (3051822891).

9155468661 is a wasteful number, since it uses less digits than its factorization.

9155468661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3051822890.

The product of its digits is 1555200, while the sum is 51.

The square root of 9155468661 is about 95684.2132276793. The cubic root of 9155468661 is about 2091.9928384100.

The spelling of 9155468661 in words is "nine billion, one hundred fifty-five million, four hundred sixty-eight thousand, six hundred sixty-one".