7920155001 has 16 divisors (see below), whose sum is σ = 11891847168. Its totient is φ = 4645251600.

The previous prime is 7920154943. The next prime is 7920155029. The reversal of 7920155001 is 1005510297.

7920155001 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7920155001 - 2¹⁴ = 7920138617 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7920155001.

It is not an unprimeable number, because it can be changed into a prime (7920155081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3870021 + ... + 3872066.

It is an arithmetic number, because the mean of its divisors is an integer number (743240448).

Almost surely, 2^7920155001 is an apocalyptic number.

It is an amenable number.

7920155001 is a deficient number, since it is larger than the sum of its proper divisors (3971692167).

7920155001 is a wasteful number, since it uses less digits than its factorization.

7920155001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7742132.

The product of its (nonzero) digits is 3150, while the sum is 30.

The square root of 7920155001 is about 88995.2526879945. The cubic root of 7920155001 is about 1993.3239903261.

Adding to 7920155001 its reverse (1005510297), we get a palindrome (8925665298).

The spelling of 7920155001 in words is "seven billion, nine hundred twenty million, one hundred fifty-five thousand, one".