126365377655 has 16 divisors (see below), whose sum is σ = 170760019968. Its totient is φ = 88937508000.

The previous prime is 126365377651. The next prime is 126365377729. The reversal of 126365377655 is 556773563621.

It is not a de Polignac number, because 126365377655 - 2² = 126365377651 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 126365377655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126365377651) 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, 37055591 + ... + 37059000.

It is an arithmetic number, because the mean of its divisors is an integer number (10672501248).

Almost surely, 2^126365377655 is an apocalyptic number.

126365377655 is a deficient number, since it is larger than the sum of its proper divisors (44394642313).

126365377655 is a wasteful number, since it uses less digits than its factorization.

126365377655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74114638.

The product of its digits is 23814000, while the sum is 56.

The spelling of 126365377655 in words is "one hundred twenty-six billion, three hundred sixty-five million, three hundred seventy-seven thousand, six hundred fifty-five".