806161655 has 16 divisors (see below), whose sum is σ = 1044519840. Its totient is φ = 593770368.

The previous prime is 806161649. The next prime is 806161667. The reversal of 806161655 is 556161608.

It is a cyclic number.

It is not a de Polignac number, because 806161655 - 2²⁰ = 805113079 is a prime.

It is a super-2 number, since 2×806161655² = 1299793227984678050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9344 + ... + 41226.

It is an arithmetic number, because the mean of its divisors is an integer number (65282490).

Almost surely, 2^806161655 is an apocalyptic number.

806161655 is a deficient number, since it is larger than the sum of its proper divisors (238358185).

806161655 is a wasteful number, since it uses less digits than its factorization.

806161655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32290.

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 806161655 is about 28392.9860176770. The cubic root of 806161655 is about 930.6949963536.

The spelling of 806161655 in words is "eight hundred six million, one hundred sixty-one thousand, six hundred fifty-five".