155516455 has 8 divisors (see below), whose sum is σ = 194733792. Its totient is φ = 119003808.

The previous prime is 155516411. The next prime is 155516461. The reversal of 155516455 is 554615551.

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

It is a cyclic number.

It is not a de Polignac number, because 155516455 - 2⁷ = 155516327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 676044 + ... + 676273.

It is an arithmetic number, because the mean of its divisors is an integer number (24341724).

Almost surely, 2^155516455 is an apocalyptic number.

155516455 is a deficient number, since it is larger than the sum of its proper divisors (39217337).

155516455 is a wasteful number, since it uses less digits than its factorization.

155516455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1352345.

The product of its digits is 75000, while the sum is 37.

The square root of 155516455 is about 12470.6236812759. The cubic root of 155516455 is about 537.7644835013.

The spelling of 155516455 in words is "one hundred fifty-five million, five hundred sixteen thousand, four hundred fifty-five".