545686231320 has 128 divisors (see below), whose sum is σ = 1819232064000. Its totient is φ = 145494092160.

The previous prime is 545686231283. The next prime is 545686231397. The reversal of 545686231320 is 23132686545.

545686231320 is a `hidden beast` number, since 5 + 4 + 5 + 6 + 8 + 623 + 13 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7761525 + ... + 7831515.

It is an arithmetic number, because the mean of its divisors is an integer number (14212750500).

Almost surely, 2^545686231320 is an apocalyptic number.

It is an amenable number.

545686231320 is an abundant number, since it is smaller than the sum of its proper divisors (1273545832680).

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

545686231320 is a wasteful number, since it uses less digits than its factorization.

545686231320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77230 (or 77220 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 45.

The spelling of 545686231320 in words is "five hundred forty-five billion, six hundred eighty-six million, two hundred thirty-one thousand, three hundred twenty".