11251640414557 has 2 divisors, whose sum is σ = 11251640414558. Its totient is φ = 11251640414556.

The previous prime is 11251640414549. The next prime is 11251640414627. The reversal of 11251640414557 is 75541404615211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7760520064441 + 3491120350116 = 2785771^2 + 1868454^2 .

It is a cyclic number.

It is not a de Polignac number, because 11251640414557 - 2³ = 11251640414549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11251640414507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5625820207278 + 5625820207279.

It is an arithmetic number, because the mean of its divisors is an integer number (5625820207279).

Almost surely, 2^{11251640414557} is an apocalyptic number.

It is an amenable number.

11251640414557 is a deficient number, since it is larger than the sum of its proper divisors (1).

11251640414557 is an equidigital number, since it uses as much as digits as its factorization.

11251640414557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672000, while the sum is 46.

The spelling of 11251640414557 in words is "eleven trillion, two hundred fifty-one billion, six hundred forty million, four hundred fourteen thousand, five hundred fifty-seven".