912195661 has 8 divisors (see below), whose sum is σ = 990101504. Its totient is φ = 835395120.

The previous prime is 912195659. The next prime is 912195671. The reversal of 912195661 is 166591219.

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 912195661 - 2¹ = 912195659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (912195631) 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, 274605 + ... + 277906.

It is an arithmetic number, because the mean of its divisors is an integer number (123762688).

Almost surely, 2^912195661 is an apocalyptic number.

It is an amenable number.

912195661 is a deficient number, since it is larger than the sum of its proper divisors (77905843).

912195661 is a wasteful number, since it uses less digits than its factorization.

912195661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552651.

The product of its digits is 29160, while the sum is 40.

The square root of 912195661 is about 30202.5770589200. The cubic root of 912195661 is about 969.8308632720.

The spelling of 912195661 in words is "nine hundred twelve million, one hundred ninety-five thousand, six hundred sixty-one".