11172632657 has 2 divisors, whose sum is σ = 11172632658. Its totient is φ = 11172632656.

The previous prime is 11172632641. The next prime is 11172632677. The reversal of 11172632657 is 75623627111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9091813201 + 2080819456 = 95351^2 + 45616^2 .

It is an emirp because it is prime and its reverse (75623627111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11172632657 - 2⁴ = 11172632641 is a prime.

It is not a weakly prime, because it can be changed into another prime (11172632677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5586316328 + 5586316329.

It is an arithmetic number, because the mean of its divisors is an integer number (5586316329).

Almost surely, 2^11172632657 is an apocalyptic number.

It is an amenable number.

11172632657 is a deficient number, since it is larger than the sum of its proper divisors (1).

11172632657 is an equidigital number, since it uses as much as digits as its factorization.

11172632657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 105840, while the sum is 41.

The spelling of 11172632657 in words is "eleven billion, one hundred seventy-two million, six hundred thirty-two thousand, six hundred fifty-seven".