12001164155254 has 16 divisors (see below), whose sum is σ = 19060737263568. Its totient is φ = 5647587466752.

The previous prime is 12001164155251. The next prime is 12001164155261. The reversal of 12001164155254 is 45255146110021.

12001164155254 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001164155251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17245054 + ... + 17927470.

It is an arithmetic number, because the mean of its divisors is an integer number (1191296078973).

Almost surely, 2^{12001164155254} is an apocalyptic number.

12001164155254 is a deficient number, since it is larger than the sum of its proper divisors (7059573108314).

12001164155254 is a wasteful number, since it uses less digits than its factorization.

12001164155254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1199679.

The product of its (nonzero) digits is 48000, while the sum is 37.

The spelling of 12001164155254 in words is "twelve trillion, one billion, one hundred sixty-four million, one hundred fifty-five thousand, two hundred fifty-four".