126038413561 has 16 divisors (see below), whose sum is σ = 128410888320. Its totient is φ = 123676283520.

The previous prime is 126038413511. The next prime is 126038413591. The reversal of 126038413561 is 165314830621.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126038413561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126038413511) 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, 80844900 + ... + 80846458.

It is an arithmetic number, because the mean of its divisors is an integer number (8025680520).

Almost surely, 2^126038413561 is an apocalyptic number.

It is an amenable number.

126038413561 is a deficient number, since it is larger than the sum of its proper divisors (2372474759).

126038413561 is a wasteful number, since it uses less digits than its factorization.

126038413561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3936.

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 126038413561 in words is "one hundred twenty-six billion, thirty-eight million, four hundred thirteen thousand, five hundred sixty-one".