672016155 has 16 divisors (see below), whose sum is σ = 1076094720. Its totient is φ = 358119008.

The previous prime is 672016153. The next prime is 672016201. The reversal of 672016155 is 551610276.

It is a cyclic number.

It is not a de Polignac number, because 672016155 - 2¹ = 672016153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (672016151) 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, 1786 + ... + 36704.

It is an arithmetic number, because the mean of its divisors is an integer number (67255920).

Almost surely, 2^672016155 is an apocalyptic number.

672016155 is a deficient number, since it is larger than the sum of its proper divisors (404078565).

672016155 is a wasteful number, since it uses less digits than its factorization.

672016155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36210.

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 672016155 is about 25923.2743880861. The cubic root of 672016155 is about 875.9108468828.

The spelling of 672016155 in words is "six hundred seventy-two million, sixteen thousand, one hundred fifty-five".