155766413 has 16 divisors (see below), whose sum is σ = 179159040. Its totient is φ = 134108400.

The previous prime is 155766409. The next prime is 155766439. The reversal of 155766413 is 314667551.

It is a cyclic number.

It is not a de Polignac number, because 155766413 - 2² = 155766409 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155766473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11168 + ... + 20886.

It is an arithmetic number, because the mean of its divisors is an integer number (11197440).

Almost surely, 2^155766413 is an apocalyptic number.

It is an amenable number.

155766413 is a deficient number, since it is larger than the sum of its proper divisors (23392627).

155766413 is a wasteful number, since it uses less digits than its factorization.

155766413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9808.

The product of its digits is 75600, while the sum is 38.

The square root of 155766413 is about 12480.6415299855. The cubic root of 155766413 is about 538.0524414178.

The spelling of 155766413 in words is "one hundred fifty-five million, seven hundred sixty-six thousand, four hundred thirteen".