126705553725 has 192 divisors, whose sum is σ = 230957360640. Its totient is φ = 61138022400.

The previous prime is 126705553717. The next prime is 126705553747. The reversal of 126705553725 is 527355507621.

It is not a de Polignac number, because 126705553725 - 2³ = 126705553717 is a prime.

It is a super-2 number, since 2×126705553725² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 260175432 + ... + 260175918.

It is an arithmetic number, because the mean of its divisors is an integer number (1202902920).

Almost surely, 2^126705553725 is an apocalyptic number.

126705553725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

126705553725 is a deficient number, since it is larger than the sum of its proper divisors (104251806915).

126705553725 is a wasteful number, since it uses less digits than its factorization.

126705553725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680 (or 675 counting only the distinct ones).

The product of its (nonzero) digits is 2205000, while the sum is 48.

The spelling of 126705553725 in words is "one hundred twenty-six billion, seven hundred five million, five hundred fifty-three thousand, seven hundred twenty-five".