20462772330 has 768 divisors, whose sum is σ = 78256668672. Its totient is φ = 3566592000.

The previous prime is 20462772307. The next prime is 20462772349. The reversal of 20462772330 is 3327726402.

20462772330 is a `hidden beast` number, since 2 + 0 + 4 + 627 + 7 + 23 + 3 + 0 = 666.

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, 47477215 + ... + 47477645.

It is an arithmetic number, because the mean of its divisors is an integer number (101896704).

Almost surely, 2^20462772330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20462772330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39128334336).

20462772330 is an abundant number, since it is smaller than the sum of its proper divisors (57793896342).

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

20462772330 is a wasteful number, since it uses less digits than its factorization.

20462772330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523 (or 520 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 36.

The spelling of 20462772330 in words is "twenty billion, four hundred sixty-two million, seven hundred seventy-two thousand, three hundred thirty".