2136026511557 has 2 divisors, whose sum is σ = 2136026511558. Its totient is φ = 2136026511556.

The previous prime is 2136026511523. The next prime is 2136026511581. The reversal of 2136026511557 is 7551156206312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1883264927041 + 252761584516 = 1372321^2 + 502754^2 .

It is a cyclic number.

It is not a de Polignac number, because 2136026511557 - 2⁸ = 2136026511301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2136026511757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1068013255778 + 1068013255779.

It is an arithmetic number, because the mean of its divisors is an integer number (1068013255779).

Almost surely, 2^{2136026511557} is an apocalyptic number.

It is an amenable number.

2136026511557 is a deficient number, since it is larger than the sum of its proper divisors (1).

2136026511557 is an equidigital number, since it uses as much as digits as its factorization.

2136026511557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378000, while the sum is 44.

The spelling of 2136026511557 in words is "two trillion, one hundred thirty-six billion, twenty-six million, five hundred eleven thousand, five hundred fifty-seven".