1640112156166 has 8 divisors (see below), whose sum is σ = 2683819891944. Its totient is φ = 745505525520.

The previous prime is 1640112156143. The next prime is 1640112156173. The reversal of 1640112156166 is 6616512110461.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37275276255 + ... + 37275276298.

It is an arithmetic number, because the mean of its divisors is an integer number (335477486493).

Almost surely, 2^{1640112156166} is an apocalyptic number.

1640112156166 is a deficient number, since it is larger than the sum of its proper divisors (1043707735778).

1640112156166 is a wasteful number, since it uses less digits than its factorization.

1640112156166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74550552566.

The product of its (nonzero) digits is 51840, while the sum is 40.

The spelling of 1640112156166 in words is "one trillion, six hundred forty billion, one hundred twelve million, one hundred fifty-six thousand, one hundred sixty-six".