612045433655 has 4 divisors (see below), whose sum is σ = 734454520392. Its totient is φ = 489636346920.

The previous prime is 612045433619. The next prime is 612045433663. The reversal of 612045433655 is 556334540216.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 612045433655 - 2¹⁴ = 612045417271 is a prime.

It is a super-2 number, since 2×612045433655² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61204543361 + ... + 61204543370.

It is an arithmetic number, because the mean of its divisors is an integer number (183613630098).

Almost surely, 2^612045433655 is an apocalyptic number.

612045433655 is a deficient number, since it is larger than the sum of its proper divisors (122409086737).

612045433655 is a wasteful number, since it uses less digits than its factorization.

612045433655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122409086736.

The product of its (nonzero) digits is 1296000, while the sum is 44.

The spelling of 612045433655 in words is "six hundred twelve billion, forty-five million, four hundred thirty-three thousand, six hundred fifty-five".