20327915776 has 243 divisors, whose sum is σ = 50570792559. Its totient is φ = 8130253824.

The previous prime is 20327915771. The next prime is 20327915791. The reversal of 20327915776 is 67751972302.

The square root of 20327915776 is 142576.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×20327915776² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (20327915771) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 303401695 + ... + 303401761.

Almost surely, 2^20327915776 is an apocalyptic number.

20327915776 is the 142576-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20327915776

20327915776 is an abundant number, since it is smaller than the sum of its proper divisors (30242876783).

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

20327915776 is an frugal number, since it uses more digits than its factorization.

20327915776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202 (or 95 counting only the distinct ones).

The product of its (nonzero) digits is 1111320, while the sum is 49.

Multiplying 20327915776 by its sum of digits (49), we get a square (996067873024 = 998032²).

20327915776 divided by its sum of digits (49) gives a square (414855424 = 20368²).

The spelling of 20327915776 in words is "twenty billion, three hundred twenty-seven million, nine hundred fifteen thousand, seven hundred seventy-six".