125711416771 has 4 divisors (see below), whose sum is σ = 126048445072. Its totient is φ = 125374388472.

The previous prime is 125711416769. The next prime is 125711416799. The reversal of 125711416771 is 177614117521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 177614117521 = 1801 ⋅98619721.

It is a cyclic number.

It is not a de Polignac number, because 125711416771 - 2¹ = 125711416769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125711416711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168513591 + ... + 168514336.

It is an arithmetic number, because the mean of its divisors is an integer number (31512111268).

Almost surely, 2^125711416771 is an apocalyptic number.

125711416771 is a deficient number, since it is larger than the sum of its proper divisors (337028301).

125711416771 is an equidigital number, since it uses as much as digits as its factorization.

125711416771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337028300.

The product of its digits is 82320, while the sum is 43.

The spelling of 125711416771 in words is "one hundred twenty-five billion, seven hundred eleven million, four hundred sixteen thousand, seven hundred seventy-one".