155615080 has 16 divisors (see below), whose sum is σ = 350134020. Its totient is φ = 62246016.

The previous prime is 155615039. The next prime is 155615107. The reversal of 155615080 is 80516551.

It can be written as a sum of positive squares in 2 ways, for example, as 146458404 + 9156676 = 12102^2 + 3026^2 .

It is a super-4 number, since 4×155615080⁴ (a number of 34 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1945149 + ... + 1945228.

Almost surely, 2^155615080 is an apocalyptic number.

155615080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155615080 is an abundant number, since it is smaller than the sum of its proper divisors (194518940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155615080 is a wasteful number, since it uses less digits than its factorization.

155615080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3890388 (or 3890384 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 31.

The square root of 155615080 is about 12474.5773475497. The cubic root of 155615080 is about 537.8781388152.

The spelling of 155615080 in words is "one hundred fifty-five million, six hundred fifteen thousand, eighty".