155016071 has 4 divisors (see below), whose sum is σ = 177161232. Its totient is φ = 132870912.

The previous prime is 155016061. The next prime is 155016077. The reversal of 155016071 is 170610551.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 170610551 = 53 ⋅3219067.

It is a cyclic number.

It is not a de Polignac number, because 155016071 - 2⁶ = 155016007 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 155016071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155016077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11072570 + ... + 11072583.

It is an arithmetic number, because the mean of its divisors is an integer number (44290308).

Almost surely, 2^155016071 is an apocalyptic number.

155016071 is a deficient number, since it is larger than the sum of its proper divisors (22145161).

155016071 is an equidigital number, since it uses as much as digits as its factorization.

155016071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22145160.

The product of its (nonzero) digits is 1050, while the sum is 26.

The square root of 155016071 is about 12450.5450081512. The cubic root of 155016071 is about 537.1871000906.

The spelling of 155016071 in words is "one hundred fifty-five million, sixteen thousand, seventy-one".