147821647680 has 2688 divisors, whose sum is σ = 720517939200. Its totient is φ = 28203614208.

The previous prime is 147821647651. The next prime is 147821647693. The reversal of 147821647680 is 86746128741.

147821647680 is a `hidden beast` number, since 1 + 4 + 7 + 82 + 16 + 476 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 3145141417 + ... + 3145141463.

Almost surely, 2^147821647680 is an apocalyptic number.

147821647680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 147821647680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (360258969600).

147821647680 is an abundant number, since it is smaller than the sum of its proper divisors (572696291520).

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

147821647680 is a wasteful number, since it uses less digits than its factorization.

147821647680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146 (or 123 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 54.

The spelling of 147821647680 in words is "one hundred forty-seven billion, eight hundred twenty-one million, six hundred forty-seven thousand, six hundred eighty".