125126512655 has 8 divisors (see below), whose sum is σ = 150158113632. Its totient is φ = 100097011168.

The previous prime is 125126512573. The next prime is 125126512673. The reversal of 125126512655 is 556215621521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125126512655 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 390632 + ... + 634701.

It is an arithmetic number, because the mean of its divisors is an integer number (18769764204).

Almost surely, 2^125126512655 is an apocalyptic number.

125126512655 is a deficient number, since it is larger than the sum of its proper divisors (25031600977).

125126512655 is a wasteful number, since it uses less digits than its factorization.

125126512655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1049745.

The product of its digits is 180000, while the sum is 41.

The spelling of 125126512655 in words is "one hundred twenty-five billion, one hundred twenty-six million, five hundred twelve thousand, six hundred fifty-five".