11602661157457 has 2 divisors, whose sum is σ = 11602661157458. Its totient is φ = 11602661157456.

The previous prime is 11602661157443. The next prime is 11602661157469. The reversal of 11602661157457 is 75475116620611.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7415170132561 + 4187491024896 = 2723081^2 + 2046336^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11602661157457 is a prime.

It is a super-2 number, since 2×11602661157457² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11602661157407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5801330578728 + 5801330578729.

It is an arithmetic number, because the mean of its divisors is an integer number (5801330578729).

Almost surely, 2^{11602661157457} is an apocalyptic number.

It is an amenable number.

11602661157457 is a deficient number, since it is larger than the sum of its proper divisors (1).

11602661157457 is an equidigital number, since it uses as much as digits as its factorization.

11602661157457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2116800, while the sum is 52.

The spelling of 11602661157457 in words is "eleven trillion, six hundred two billion, six hundred sixty-one million, one hundred fifty-seven thousand, four hundred fifty-seven".