20163733071 has 16 divisors (see below), whose sum is σ = 28311878400. Its totient is φ = 12729633408.

The previous prime is 20163733067. The next prime is 20163733087. The reversal of 20163733071 is 17033736102.

It is a happy number.

It is not a de Polignac number, because 20163733071 - 2² = 20163733067 is a prime.

It is a super-2 number, since 2×20163733071² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20163733001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64590 + ... + 210948.

It is an arithmetic number, because the mean of its divisors is an integer number (1769492400).

Almost surely, 2^20163733071 is an apocalyptic number.

20163733071 is a deficient number, since it is larger than the sum of its proper divisors (8148145329).

20163733071 is a wasteful number, since it uses less digits than its factorization.

20163733071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148798.

The product of its (nonzero) digits is 15876, while the sum is 33.

The spelling of 20163733071 in words is "twenty billion, one hundred sixty-three million, seven hundred thirty-three thousand, seventy-one".