126611555583 has 16 divisors (see below), whose sum is σ = 175107680000. Its totient is φ = 81315347904.

The previous prime is 126611555579. The next prime is 126611555621. The reversal of 126611555583 is 385555116621.

It is not a de Polignac number, because 126611555583 - 2² = 126611555579 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126611555513) 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, 6713083 + ... + 6731916.

It is an arithmetic number, because the mean of its divisors is an integer number (10944230000).

Almost surely, 2^126611555583 is an apocalyptic number.

126611555583 is a deficient number, since it is larger than the sum of its proper divisors (48496124417).

126611555583 is a wasteful number, since it uses less digits than its factorization.

126611555583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13445118.

The product of its digits is 1080000, while the sum is 48.

The spelling of 126611555583 in words is "one hundred twenty-six billion, six hundred eleven million, five hundred fifty-five thousand, five hundred eighty-three".