4155115920 has 40 divisors (see below), whose sum is σ = 12880860096. Its totient is φ = 1108030848.

The previous prime is 4155115897. The next prime is 4155115949. The reversal of 4155115920 is 295115514.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-3 number, since 3×4155115920³ (a number of 30 digits) contains 333 as substring.

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, 8656252 + ... + 8656731.

Almost surely, 2^4155115920 is an apocalyptic number.

4155115920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4155115920 is an abundant number, since it is smaller than the sum of its proper divisors (8725744176).

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

4155115920 is a wasteful number, since it uses less digits than its factorization.

4155115920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17312999 (or 17312993 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 33.

The square root of 4155115920 is about 64460.1886438443. The cubic root of 4155115920 is about 1607.6606484201.

The spelling of 4155115920 in words is "four billion, one hundred fifty-five million, one hundred fifteen thousand, nine hundred twenty".