147781168540 has 12 divisors (see below), whose sum is σ = 310340453976. Its totient is φ = 59112467408.

The previous prime is 147781168519. The next prime is 147781168573. The reversal of 147781168540 is 45861187741.

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, 3694529194 + ... + 3694529233.

It is an arithmetic number, because the mean of its divisors is an integer number (25861704498).

Almost surely, 2^147781168540 is an apocalyptic number.

147781168540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

147781168540 is an abundant number, since it is smaller than the sum of its proper divisors (162559285436).

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

147781168540 is a wasteful number, since it uses less digits than its factorization.

147781168540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7389058436 (or 7389058434 counting only the distinct ones).

The product of its (nonzero) digits is 1505280, while the sum is 52.

The spelling of 147781168540 in words is "one hundred forty-seven billion, seven hundred eighty-one million, one hundred sixty-eight thousand, five hundred forty".