126037661634 has 40 divisors (see below), whose sum is σ = 282438109008. Its totient is φ = 42009521400.

The previous prime is 126037661621. The next prime is 126037661639. The reversal of 126037661634 is 436166730621.

126037661634 is a `hidden beast` number, since 1 + 2 + 6 + 0 + 3 + 7 + 6 + 6 + 1 + 634 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 126037661634.

It is not an unprimeable number, because it can be changed into a prime (126037661639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4010209 + ... + 4041515.

Almost surely, 2^126037661634 is an apocalyptic number.

126037661634 is an abundant number, since it is smaller than the sum of its proper divisors (156400447374).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126037661634 is a wasteful number, since it uses less digits than its factorization.

126037661634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56172 (or 56163 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 45.

The spelling of 126037661634 in words is "one hundred twenty-six billion, thirty-seven million, six hundred sixty-one thousand, six hundred thirty-four".