125164227819 has 16 divisors (see below), whose sum is σ = 170451629568. Its totient is φ = 81660139872.

The previous prime is 125164227809. The next prime is 125164227833. The reversal of 125164227819 is 918722461521.

It is not a de Polignac number, because 125164227819 - 2⁷ = 125164227691 is a prime.

It is a super-2 number, since 2×125164227819² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (125164227809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1867324 + ... + 1933190.

It is an arithmetic number, because the mean of its divisors is an integer number (10653226848).

Almost surely, 2^125164227819 is an apocalyptic number.

125164227819 is a deficient number, since it is larger than the sum of its proper divisors (45287401749).

125164227819 is a wasteful number, since it uses less digits than its factorization.

125164227819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79394.

The product of its digits is 483840, while the sum is 48.

The spelling of 125164227819 in words is "one hundred twenty-five billion, one hundred sixty-four million, two hundred twenty-seven thousand, eight hundred nineteen".