220020383694964 has 12 divisors (see below), whose sum is σ = 387619803490500. Its totient is φ = 109271868411968.

The previous prime is 220020383694941. The next prime is 220020383694967. The reversal of 220020383694964 is 469496383020022.

It can be written as a sum of positive squares in 2 ways, for example, as 10988296819600 + 209032086875364 = 3314860^2 + 14457942^2 .

It is a super-2 number, since 2×220020383694964² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220020383694899 and 220020383694908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220020383694967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184580858209 + ... + 184580859400.

It is an arithmetic number, because the mean of its divisors is an integer number (32301650290875).

Almost surely, 2^{220020383694964} is an apocalyptic number.

It is an amenable number.

220020383694964 is a deficient number, since it is larger than the sum of its proper divisors (167599419795536).

220020383694964 is a wasteful number, since it uses less digits than its factorization.

220020383694964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369161717762 (or 369161717760 counting only the distinct ones).

The product of its (nonzero) digits is 26873856, while the sum is 58.

The spelling of 220020383694964 in words is "two hundred twenty trillion, twenty billion, three hundred eighty-three million, six hundred ninety-four thousand, nine hundred sixty-four".