1906918565164 has 6 divisors (see below), whose sum is σ = 3337107489044. Its totient is φ = 953459282580.

The previous prime is 1906918565147. The next prime is 1906918565191. The reversal of 1906918565164 is 4615658196091.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 238364820642 + ... + 238364820649.

Almost surely, 2^{1906918565164} is an apocalyptic number.

It is an amenable number.

1906918565164 is a deficient number, since it is larger than the sum of its proper divisors (1430188923880).

1906918565164 is a wasteful number, since it uses less digits than its factorization.

1906918565164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476729641295 (or 476729641293 counting only the distinct ones).

The product of its (nonzero) digits is 13996800, while the sum is 61.

The spelling of 1906918565164 in words is "one trillion, nine hundred six billion, nine hundred eighteen million, five hundred sixty-five thousand, one hundred sixty-four".