16670001655 has 16 divisors (see below), whose sum is σ = 20243995200. Its totient is φ = 13176691200.

The previous prime is 16670001637. The next prime is 16670001697. The reversal of 16670001655 is 55610007661.

It is not a de Polignac number, because 16670001655 - 2⁷ = 16670001527 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153055 + ... + 238255.

It is an arithmetic number, because the mean of its divisors is an integer number (1265249700).

Almost surely, 2^16670001655 is an apocalyptic number.

16670001655 is a deficient number, since it is larger than the sum of its proper divisors (3573993545).

16670001655 is a wasteful number, since it uses less digits than its factorization.

16670001655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85674.

The product of its (nonzero) digits is 37800, while the sum is 37.

The spelling of 16670001655 in words is "sixteen billion, six hundred seventy million, one thousand, six hundred fifty-five".