723126543656055 has 128 divisors (see below), whose sum is σ = 1505233053351936. Its totient is φ = 287450358412800.

The previous prime is 723126543656047. The next prime is 723126543656089. The reversal of 723126543656055 is 550656345621327.

It is not a de Polignac number, because 723126543656055 - 2³ = 723126543656047 is a prime.

It is a super-2 number, since 2×723126543656055² (a number of 31 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 723126543656055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3163431865 + ... + 3163660445.

It is an arithmetic number, because the mean of its divisors is an integer number (11759633229312).

Almost surely, 2^{723126543656055} is an apocalyptic number.

723126543656055 is an abundant number, since it is smaller than the sum of its proper divisors (782106509695881).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

723126543656055 is a wasteful number, since it uses less digits than its factorization.

723126543656055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347717.

The product of its (nonzero) digits is 136080000, while the sum is 60.

The spelling of 723126543656055 in words is "seven hundred twenty-three trillion, one hundred twenty-six billion, five hundred forty-three million, six hundred fifty-six thousand, fifty-five".