919190964655 has 4 divisors (see below), whose sum is σ = 1103029157592. Its totient is φ = 735352771720.

The previous prime is 919190964613. The next prime is 919190964683. The reversal of 919190964655 is 556469091919.

It is a happy number.

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

It is not a de Polignac number, because 919190964655 - 2¹⁵ = 919190931887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91919096461 + ... + 91919096470.

It is an arithmetic number, because the mean of its divisors is an integer number (275757289398).

Almost surely, 2^919190964655 is an apocalyptic number.

919190964655 is a deficient number, since it is larger than the sum of its proper divisors (183838192937).

919190964655 is a wasteful number, since it uses less digits than its factorization.

919190964655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183838192936.

The product of its (nonzero) digits is 23619600, while the sum is 64.

The spelling of 919190964655 in words is "nine hundred nineteen billion, one hundred ninety million, nine hundred sixty-four thousand, six hundred fifty-five".