11061621157 has 2 divisors, whose sum is σ = 11061621158. Its totient is φ = 11061621156.

The previous prime is 11061621113. The next prime is 11061621169. The reversal of 11061621157 is 75112616011.

11061621157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11016811521 + 44809636 = 104961^2 + 6694^2 .

It is a cyclic number.

It is not a de Polignac number, because 11061621157 - 2²³ = 11053232549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11061621187) 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 as a sum of consecutive naturals, namely, 5530810578 + 5530810579.

It is an arithmetic number, because the mean of its divisors is an integer number (5530810579).

Almost surely, 2^11061621157 is an apocalyptic number.

It is an amenable number.

11061621157 is a deficient number, since it is larger than the sum of its proper divisors (1).

11061621157 is an equidigital number, since it uses as much as digits as its factorization.

11061621157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 31.

The spelling of 11061621157 in words is "eleven billion, sixty-one million, six hundred twenty-one thousand, one hundred fifty-seven".