618591345546 has 16 divisors (see below), whose sum is σ = 1237780677600. Its totient is φ = 206097450768.

The previous prime is 618591345527. The next prime is 618591345601. The reversal of 618591345546 is 645543195816.

It is a Curzon 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, 24902656 + ... + 24927483.

It is an arithmetic number, because the mean of its divisors is an integer number (77361292350).

Almost surely, 2^618591345546 is an apocalyptic number.

618591345546 is an abundant number, since it is smaller than the sum of its proper divisors (619189332054).

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

618591345546 is a wasteful number, since it uses less digits than its factorization.

618591345546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49832213.

The product of its digits is 15552000, while the sum is 57.

The spelling of 618591345546 in words is "six hundred eighteen billion, five hundred ninety-one million, three hundred forty-five thousand, five hundred forty-six".