12151640761 has 8 divisors (see below), whose sum is σ = 13655355840. Its totient is φ = 10729207632.

The previous prime is 12151640747. The next prime is 12151640777. The reversal of 12151640761 is 16704615121.

12151640761 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 not a de Polignac number, because 12151640761 - 2¹¹ = 12151638713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12151640701) 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, 20320171 + ... + 20320768.

It is an arithmetic number, because the mean of its divisors is an integer number (1706919480).

Almost surely, 2^12151640761 is an apocalyptic number.

It is an amenable number.

12151640761 is a deficient number, since it is larger than the sum of its proper divisors (1503715079).

12151640761 is a wasteful number, since it uses less digits than its factorization.

12151640761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40640975.

The product of its (nonzero) digits is 10080, while the sum is 34.

The spelling of 12151640761 in words is "twelve billion, one hundred fifty-one million, six hundred forty thousand, seven hundred sixty-one".