126158805557555 has 8 divisors (see below), whose sum is σ = 151391022925344. Its totient is φ = 100926740275200.

The previous prime is 126158805557531. The next prime is 126158805557579. The reversal of 126158805557555 is 555755508851621.

It is an interprime number because it is at equal distance from previous prime (126158805557531) and next prime (126158805557579).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-126158805557555 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36188366 + ... + 39521075.

It is an arithmetic number, because the mean of its divisors is an integer number (18923877865668).

Almost surely, 2^{126158805557555} is an apocalyptic number.

126158805557555 is a deficient number, since it is larger than the sum of its proper divisors (25232217367789).

126158805557555 is an equidigital number, since it uses as much as digits as its factorization.

126158805557555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76042717.

The product of its (nonzero) digits is 420000000, while the sum is 68.

The spelling of 126158805557555 in words is "one hundred twenty-six trillion, one hundred fifty-eight billion, eight hundred five million, five hundred fifty-seven thousand, five hundred fifty-five".