20251113345577 has 2 divisors, whose sum is σ = 20251113345578. Its totient is φ = 20251113345576.

The previous prime is 20251113345521. The next prime is 20251113345703. The reversal of 20251113345577 is 77554331115202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16171505147161 + 4079608198416 = 4021381^2 + 2019804^2 .

It is a cyclic number.

It is not a de Polignac number, because 20251113345577 - 2²⁷ = 20250979127849 is a prime.

It is not a weakly prime, because it can be changed into another prime (20251113345377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10125556672788 + 10125556672789.

It is an arithmetic number, because the mean of its divisors is an integer number (10125556672789).

Almost surely, 2^{20251113345577} is an apocalyptic number.

It is an amenable number.

20251113345577 is a deficient number, since it is larger than the sum of its proper divisors (1).

20251113345577 is an equidigital number, since it uses as much as digits as its factorization.

20251113345577 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 882000, while the sum is 46.

The spelling of 20251113345577 in words is "twenty trillion, two hundred fifty-one billion, one hundred thirteen million, three hundred forty-five thousand, five hundred seventy-seven".