14991164761 has 2 divisors, whose sum is σ = 14991164762. Its totient is φ = 14991164760.

The previous prime is 14991164731. The next prime is 14991164803. The reversal of 14991164761 is 16746119941.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11698585600 + 3292579161 = 108160^2 + 57381^2 .

It is an emirp because it is prime and its reverse (16746119941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14991164761 - 2¹⁷ = 14991033689 is a prime.

It is not a weakly prime, because it can be changed into another prime (14991164731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7495582380 + 7495582381.

It is an arithmetic number, because the mean of its divisors is an integer number (7495582381).

Almost surely, 2^14991164761 is an apocalyptic number.

It is an amenable number.

14991164761 is a deficient number, since it is larger than the sum of its proper divisors (1).

14991164761 is an equidigital number, since it uses as much as digits as its factorization.

14991164761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 49.

The spelling of 14991164761 in words is "fourteen billion, nine hundred ninety-one million, one hundred sixty-four thousand, seven hundred sixty-one".