20161612350 has 72 divisors (see below), whose sum is σ = 59091867432. Its totient is φ = 4887662400.

The previous prime is 20161612333. The next prime is 20161612351. The reversal of 20161612350 is 5321616102.

20161612350 is a `hidden beast` number, since 2 + 0 + 1 + 616 + 12 + 35 + 0 = 666.

It is a super-2 number, since 2×20161612350² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20161612351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2031577 + ... + 2041476.

It is an arithmetic number, because the mean of its divisors is an integer number (820720381).

Almost surely, 2^20161612350 is an apocalyptic number.

20161612350 is an abundant number, since it is smaller than the sum of its proper divisors (38930255082).

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

20161612350 is a wasteful number, since it uses less digits than its factorization.

20161612350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4073082 (or 4073074 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The spelling of 20161612350 in words is "twenty billion, one hundred sixty-one million, six hundred twelve thousand, three hundred fifty".