20164633445 has 8 divisors (see below), whose sum is σ = 26397338400. Its totient is φ = 14665187920.

The previous prime is 20164633399. The next prime is 20164633459. The reversal of 20164633445 is 54433646102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20164633445 - 2²² = 20160439141 is a prime.

It is a super-2 number, since 2×20164633445² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20164633399 and 20164633408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183314795 + ... + 183314904.

It is an arithmetic number, because the mean of its divisors is an integer number (3299667300).

Almost surely, 2^20164633445 is an apocalyptic number.

It is an amenable number.

20164633445 is a deficient number, since it is larger than the sum of its proper divisors (6232704955).

20164633445 is a wasteful number, since it uses less digits than its factorization.

20164633445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366629715.

The product of its (nonzero) digits is 207360, while the sum is 38.

It can be divided in two parts, 201 and 64633445, that added together give a palindrome (64633646).

The spelling of 20164633445 in words is "twenty billion, one hundred sixty-four million, six hundred thirty-three thousand, four hundred forty-five".