4666021004520 has 256 divisors, whose sum is σ = 15598022860800. Its totient is φ = 1240707144960.

The previous prime is 4666021004461. The next prime is 4666021004531. The reversal of 4666021004520 is 254001206664.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 826280337 + ... + 826285983.

It is an arithmetic number, because the mean of its divisors is an integer number (60929776800).

Almost surely, 2^{4666021004520} is an apocalyptic number.

4666021004520 is a gapful number since it is divisible by the number (40) 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 4666021004520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7799011430400).

4666021004520 is an abundant number, since it is smaller than the sum of its proper divisors (10932001856280).

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

4666021004520 is a wasteful number, since it uses less digits than its factorization.

4666021004520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7725 (or 7715 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 4666021004520 in words is "four trillion, six hundred sixty-six billion, twenty-one million, four thousand, five hundred twenty".