11632661501 has 2 divisors, whose sum is σ = 11632661502. Its totient is φ = 11632661500.

The previous prime is 11632661489. The next prime is 11632661507. The reversal of 11632661501 is 10516623611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8532955876 + 3099705625 = 92374^2 + 55675^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11632661501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11632661507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5816330750 + 5816330751.

It is an arithmetic number, because the mean of its divisors is an integer number (5816330751).

Almost surely, 2^11632661501 is an apocalyptic number.

It is an amenable number.

11632661501 is a deficient number, since it is larger than the sum of its proper divisors (1).

11632661501 is an equidigital number, since it uses as much as digits as its factorization.

11632661501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 32.

The spelling of 11632661501 in words is "eleven billion, six hundred thirty-two million, six hundred sixty-one thousand, five hundred one".