16364293929 has 9 divisors (see below), whose sum is σ = 23637867799. Its totient is φ = 10909273440.

The previous prime is 16364293927. The next prime is 16364293969. The reversal of 16364293929 is 92939246361.

The square root of 16364293929 is 127923.

It is a perfect power (a square), and thus also a powerful number.

16364293929 is a `hidden beast` number, since 163 + 6 + 429 + 39 + 29 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10521220329 + 5843073600 = 102573^2 + 76440^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 16364293929 - 2¹ = 16364293927 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16364293921) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 362449 + ... + 405089.

Almost surely, 2^16364293929 is an apocalyptic number.

16364293929 is the 127923-rd square number.

16364293929 is the 63962-nd centered octagonal number.

It is an amenable number.

16364293929 is a deficient number, since it is larger than the sum of its proper divisors (7273573870).

16364293929 is an frugal number, since it uses more digits than its factorization.

16364293929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85288 (or 42644 counting only the distinct ones).

The product of its digits is 3779136, while the sum is 54.

The spelling of 16364293929 in words is "sixteen billion, three hundred sixty-four million, two hundred ninety-three thousand, nine hundred twenty-nine".