20153366564 has 12 divisors (see below), whose sum is σ = 35369449500. Its totient is φ = 10047809568.

The previous prime is 20153366561. The next prime is 20153366573. The reversal of 20153366564 is 46566335102.

It can be written as a sum of positive squares in 2 ways, for example, as 11153049664 + 9000316900 = 105608^2 + 94870^2 .

It is a super-4 number, since 4×20153366564⁴ (a number of 42 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (20153366561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7216859 + ... + 7219650.

It is an arithmetic number, because the mean of its divisors is an integer number (2947454125).

Almost surely, 2^20153366564 is an apocalyptic number.

It is an amenable number.

20153366564 is a deficient number, since it is larger than the sum of its proper divisors (15216082936).

20153366564 is a wasteful number, since it uses less digits than its factorization.

20153366564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14436862 (or 14436860 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 41.

The spelling of 20153366564 in words is "twenty billion, one hundred fifty-three million, three hundred sixty-six thousand, five hundred sixty-four".