126037661636 has 12 divisors (see below), whose sum is σ = 230155730112. Its totient is φ = 60278881608.

The previous prime is 126037661621. The next prime is 126037661639. The reversal of 126037661636 is 636166730621.

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 3 ways as a sum of consecutive naturals, for example, 684987200 + ... + 684987383.

It is an arithmetic number, because the mean of its divisors is an integer number (19179644176).

Almost surely, 2^126037661636 is an apocalyptic number.

It is an amenable number.

126037661636 is a deficient number, since it is larger than the sum of its proper divisors (104118068476).

126037661636 is a wasteful number, since it uses less digits than its factorization.

126037661636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1369974610 (or 1369974608 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 47.

The spelling of 126037661636 in words is "one hundred twenty-six billion, thirty-seven million, six hundred sixty-one thousand, six hundred thirty-six".