612143033155 has 24 divisors (see below), whose sum is σ = 813068680032. Its totient is φ = 440868198144.

The previous prime is 612143033149. The next prime is 612143033179. The reversal of 612143033155 is 551330341216.

It is not a de Polignac number, because 612143033155 - 2⁹ = 612143032643 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 612143033155.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6761919 + ... + 6851848.

It is an arithmetic number, because the mean of its divisors is an integer number (33877861668).

Almost surely, 2^612143033155 is an apocalyptic number.

612143033155 is a deficient number, since it is larger than the sum of its proper divisors (200925646877).

612143033155 is a wasteful number, since it uses less digits than its factorization.

612143033155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13613835 (or 13613812 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 34.

The spelling of 612143033155 in words is "six hundred twelve billion, one hundred forty-three million, thirty-three thousand, one hundred fifty-five".