9151955681 has 8 divisors (see below), whose sum is σ = 9985680000. Its totient is φ = 8318519440.

The previous prime is 9151955669. The next prime is 9151955731. The reversal of 9151955681 is 1865591519.

9151955681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-9151955681 is a prime.

It is a super-2 number, since 2×9151955681² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9151955081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2681 + ... + 135318.

It is an arithmetic number, because the mean of its divisors is an integer number (1248210000).

Almost surely, 2^9151955681 is an apocalyptic number.

It is an amenable number.

9151955681 is a deficient number, since it is larger than the sum of its proper divisors (833724319).

9151955681 is a wasteful number, since it uses less digits than its factorization.

9151955681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144039.

The product of its digits is 486000, while the sum is 50.

The square root of 9151955681 is about 95665.8543107205. The cubic root of 9151955681 is about 2091.7252362648.

The spelling of 9151955681 in words is "nine billion, one hundred fifty-one million, nine hundred fifty-five thousand, six hundred eighty-one".